Alexander Grothendieck
Alexander Grothendieck (born March 28, 1928, Berlin, Germany; died 2014), was a French mathematician. Grothendieck is best remembered for Grothendieck trace theorem, Tutte–Grothendieck invariant and Tarski–Grothendieck set theory. Grothendieck's honours include Fields medal, Émile Picard Medal and Crafoord Prize in Mathematics.
Alexander Grothendieck’s zodiac sign was Aries, Chinese zodiac was Earth Dragon, with Life Path 6 in numerology.
Aries, Chinese zodiac was 
Earth Dragon, with 
Life Path 6 in numerology.Your match with Alexander
Alexander Grothendieck’s AsterNym identity
The Radiant Diplomat
Fire represents warmth, visibility and momentum. Fire-led charts are associated with enthusiasm, expression and the ability to encourage other people. Life Path 6 represents care: home, responsibility, beauty and the instinct to support the people nearby.
Fire Day Master (BaZi) × cardinal Sun × Life Path 6, on the emotional plane.
How common is the name Alexander in the U.S.?
#30
US rank in 2025
~740,668
Americans share it since 1880
1993
its peak year
Alexander ranked 152nd among boys and 3,441st among girls in 1928, the year of this birth, with 1,048 American boys and 8 girls on the register.
US Social Security Administration public records
What Alexander’s name adds up to
Worked from the name as published, letter by letter.
5
Expression · versatility
1
Soul Urge · independence
4
Personality · steady, dependable
The name opens on A (1) and closes on R (9). The value it repeats most is 5, which numerology reads as movement.
Pythagorean letter values · A=1 to I=9, then J=1 again
Alexander’s lucky numbers, colours and stones
Traditional correspondences, calculated not chosen.
Lucky numbers
6 · 1 · 7
Lucky colours
Yellow & Ochre
Lucky day
Tuesday
Direction
• Center
Season
the turning of seasons
Stones
Aquamarine, Red Coral, Citrine
Flower constellation
🌼 Daffodil · 🌺 Red Dahlia · 🌻 Zinnia
Sunlit yellow · Crimson · Terracotta
The record
What sets Alexander apart
Mario Vargas Llosa (1936) and Amancio Ortega (1936) share the birthday in another year, so the sun sits where it sits here.
What the chart says
Alexander, according to the stars
Core essence
Alexander leads with the body. First in, first to speak, first to say the thing everyone was thinking, and honestly a little surprised when the room needed a second to catch up. The core of Alexander is courage that does not look like courage from the inside, it just looks like Tuesday. They would rather be wrong fast than right slowly, and it is why people follow them.
The vibe
Underneath, Alexander is all feeling, tide in and tide out. The Moon in Cancer means moods are weather, real and passing, and memory is long: they keep every kindness and, quietly, every slight. What Alexander needs to feel safe is a soft place to land that is not going anywhere. Give them that and they give you everything.
How Alexander wants to be loved
Alexander wants to be loved tenderly. Venus in Pisces is the romantic of the zodiac: soft, giving, a little dreamy, and easily bruised. They love without keeping score and need a partner who will not take advantage of that. Be gentle with Alexander, be honest, and they will make the ordinary feel enchanted.
How Alexander creates
How Alexander makes things happen: they hold the flame steady. A Yin Fire day master is the candle, the lamp, the light that is close and personal rather than blazing. Alexander creates intimacy, one room, one conversation, one person made to feel seen. Moody when the fuel runs low, magnetic when it does not.
Instinct
Instinct: Alexander is larger than life, a Dragon year, and their gut reaction is to go big. Confident, lucky, a natural at the centre of things, and warm-hearted underneath the spectacle. The Earth year grounds it: practical, patient, someone people lean on.
Purpose
Purpose: Life Path 6 is the nurturer. Alexander is here to care, to make a home wherever they are, to be the person others come to. Responsible, warm, a little too willing to carry everyone, and learning to let themselves be looked after.
Triggers
Triggers: being told "because that's how it's done." Mars in Aquarius fights for the idea, the group, the principle, rarely for themselves. Alexander goes cool and distant rather than hot, and then does the surprising thing. Point them at a cause and they will rewrite the rules around it.
Computed from Alexander's birth date. Working below.
Where Alexander sits
Six lines
Alexander’s dot comes from the chart; yours is where you put it.
You may draw energy from a wide network, many doors, lightly held.
You may leap first and adjust as you go. Waiting can feel like losing momentum.
You likely share some feelings openly and keep others to yourself.
You may want to resolve tension the moment it appears, rather than let it sit.
You likely balance practical steps with room to imagine further.
You may feel connection fast. Chemistry can arrive before the details do.
Tap each line where you sit.
All twelve of yours, from your birth date →✦ A real star from their birth night
Dedicate a star to Alexander Grothendieck
Three stars chosen from the real sky above Berlin on the night they were born. Choose the story that connects you.
A 9 p.m. reference sky, not the birth minute. Dedications are commemorative and confer no ownership of stars.
The sky over Berlin that night
Computed for 52.52°N, 9 p.m. local sky.
Overhead at Berlin at 9 p.m. that evening: Talitha of Ursa Major, within 5.6° of the exact zenith.
Of the 106 catalog stars above the horizon, Sirius was the brightest.
Berlin sits at 52.5°N, high enough that Vega, Capella and Deneb never set there — they circle the pole all night, every night of the year.
Canopus, Rigil Kentaurus, Achernar, Hadar, Acrux, Mimosa and Toliman cannot be seen from Berlin at all: they sit past the −37.5° declination limit this latitude imposes.
The Moon was at first quarter, 54% lit, and above the horizon, with the Sun 21° down.
How unusual Alexander's chart is
Chart pattern score
39 / 100 · Quietly distinctive
3-planet stellium in Aries · No Earth planets
An AsterNym index built from stelliums, yods, grand crosses and chart shape. It is not a population percentile, and a high score is not a better chart. Without a birth time the houses are left out of it.
Score your own chart →Alexander Grothendieck in 15 seconds
Aries Sun
Aries SunFirst through every door.
Alexander Grothendieck's Sun was in Aries for the whole of March 28, 1928, so no birth time is needed to settle it.
What Aries means →Earth Dragon
Earth DragonConfident before the proof.
Alexander Grothendieck was born on March 28, 1928, which falls in a Earth Dragon year of the Chinese calendar.
What the Dragon means →Life Path 6
Life Path 6Care is the whole job.
Alexander Grothendieck's birth date, March 28, 1928, reduces to Life Path 6 under the numerology method AsterNym uses.
What Life Path 6 means →What stands out in Alexander’s chart
- The tightest major aspect in Alexander Grothendieck's date-only chart is Jupiter square Pluto, with an orb of under 1°.
- Three planets, Sun, Jupiter and Uranus, sit together in Aries, which astrologers call a stellium.
- Five of the ten planets fall in Cardinal signs, making Cardinal the strongest modality in this chart.
- Alexander Grothendieck combines a Fire Day Master in BaZi with a cardinal Sun and a Life Path on the emotional plane, the combination AsterNym calls The Radiant Diplomat.
Alexander’s birth chart
Reference chart · birth time unknown
Positions are checked across the whole date. The Moon ranges from 0° to 13° Cancer depending on the hour.
No birth time, so the houses are a solar chart: the Sun’s sign counts as house 1.
Placements
Tap one to light it on the wheel.
The working: aspects, Chiron and the asteroids, dominant planets and configurationsshow
Aspects across every possible birth time
stableSunsquareMoon0.1° to 6.9° orb
Alexander’s core identity grinds against their feelings.
stableJupitersquarePluto0.5° to 0.8° orb
Alexander’s growth grinds against their depths.
stableVenustrinePluto1.7° to 2.9° orb
Alexander’s affections flow straight into their depths. A talent so smooth it can go unnoticed.
stableMercuryconjunctionVenus2.1° orb
stableMarssextileSaturn2.7° to 3.5° orb
stableSunconjunctionUranus3.5° to 4.4° orb
stableMercurytrinePluto3.8° to 5.1° orb
stableMarsoppositionNeptune4.2° to 5.0° orb
stableJupitertrineSaturn4.7° to 4.9° orb
stableSunconjunctionJupiter6.4° to 7.2° orb
possibleMoontrineVenusorb from 0.0° to 11.9° depending on birth time
possibleMoonsquareUranusorb from 0.0° to 10.2° depending on birth time
Chart signature
Elements
- Fire5 of 10
- Earth0 of 10
- Air1 of 10
- Water4 of 10
Modalities
- Cardinal5 of 10
- Fixed2 of 10
- Mutable3 of 10
Counted across the ten planets by sign: Fire leads this chart, with no planets in Earth signs.
Alexander’s Chiron, Ceres, Eros, Hygiea and Lilith
What astrologers make of these five, at noon values.
⚷ ChironTaurus 3°56′ (moves 0.06° over the day)
centaur (2060) · the wound and what is learnt from it
⚳ CeresAquarius 24°35′ (moves 0.35° over the day)
dwarf planet (1) · how a person nurtures and wants to be nurtured
♡ ErosAquarius 9°10′ (moves 0.52° over the day)
near-Earth asteroid (433) · what draws them and how they desire
⚕ HygieaCapricorn 19°33′ (moves 0.27° over the day)
main-belt asteroid (10) · health, routine and what keeps them well
⚸ Black Moon LilithScorpio 13°21′ (moves 0.11° over the day)
mean lunar apogee · the part that refuses to be tamed
Aspects to the asteroids and Lilith
- Black Moon Lilith trine Venus 0.7°
- Eros sextile Sun 1.6°
- Black Moon Lilith trine Pluto 1.6°
- Ceres opposition Neptune 2.2°
- Ceres conjunction Mars 2.4°
- Black Moon Lilith trine Mercury 2.8°
Alexander’s dominant planets
1. ♂ Mars8 pts
rules the Sun sign, Aries; disposes Sun, Jupiter, Uranus; 2 major aspects
2. ☉ Sun4 pts
disposes Neptune; 3 major aspects
3. ☽ Moon4 pts
in its own sign, Cancer; disposes Pluto; 1 major aspect
Configurations in Alexander’s chart
Stellium in Aries · Sun, Jupiter, UranusThree or more planets in one sign (four, or three with a luminary, by AsterNym's count): a concentration astrologers read as that sign's themes dominating the chart.
Minor aspects
semi-sextile, semi-square, quintile, sesquiquadrate, biquintile, quincunx.
- Sun semi-square Mars 0.3°
- Uranus biquintile Neptune 0.8°
- Mars biquintile Pluto 1.3°
- Venus semi-sextile Jupiter 1.7°
More people like Alexander
Other mathematicians
- Paul Cohen1934
- Herbert A. Hauptman1917
- Michael Atiyah1929
- John von Neumann1903
- Dudley R. Herschbach1932
- René Thom1923
Born in Germany
- Klaus HasselmannGerman climate researcher, meteorologist, and oceanologist (born 1931)
- Carl DueringGerman actor
- Hardy KrügerGerman actor
- Theo AlbrechtGerman entrepreneur
- Anne FrankGerman-born Dutch Jewish diarist and Holocaust victim
- Lisel MuellerGerman-American poet and translator
More charts like Alexander’s
Fellow Aries suns
- Jesse PlemonsAmerican actor (born 1988)
- Ann Romneywife of Mitt Romney, First Lady of Massachusetts
- Vince VaughnAmerican actor (born 1970)
Born in Dragon years
- Klaus WennemannGerman actor
- James CoburnAmerican actor
- Roberto BenigniItalian actor, comedian, screenwriter and film director (born 1952)
Also born on March 28
- Mario Vargas Llosa1936
- Amancio Ortega1936
- Jackson Wang1994
- Quan Hongchan2007
- D4vd2005
- Alex Wassabi1990
Fellow Yin Fire day masters
- Eddie Van HalenDutch-American rock guitarist
- Chien-Shiung WuChinese-American physicist
- James MarsdenAmerican actor
Other Aries Dragon charts
- Jake BatesAmerican football player (born 2000)
- Yasir AbdullahAmerican football player (born 2000)
- Tyler LinderbaumAmerican football center
- Justin ShorterAmerican football player (born 2000)
Other Radiant Diplomats
- Tom ArnoldAmerican stand-up comedian and actor (born 1959)
- Andrea BarberAmerican actress (born 1976)
- Blac ChynaAmerican model and reality television personality
- Clare CrawleyAmerican television personality
Famous people with Life Path 6
- Heinrich BöllGerman writer
- Bruce WillisAmerican actor
- Jeff BezosAmerican business magnate
From the journal: Astrology vs astronomy: when and why they separated · Is Western astrology outdated?
Alexander’s cards
Computed from March 28, 1928. Tap to flip.
Birth tarot card
The LoversAsterNym identity card
The Radiant DiplomatWestern zodiac
AriesChinese zodiac
Dragon 辰Life Path
6 · Guardian♂ Ruled by Mars
Iron Fe
The working: BaZi pillarsshow
BaZi pillars
Day Master: yin Fire.
Year
戊
yang Earth
辰
Dragon
Earth
roots & early life
Month
乙
yin Wood
卯
Rabbit
Wood
work & drive
Day
day master
丁
yin Fire
卯
Rabbit
Wood
you & partnership
Where this comes from, and how it is worked out
Alexander’s birth date and birthplace come from Wikidata Q77141 (CC0), as do the occupations, works and awards above. With no documented birth time this chart is rated X on the Rodden scale, the astrological convention for how well evidenced a birth time is. The banner above lists what that leaves out. Entries are matched to Wikidata by entity id rather than by name, kept at day precision, and dropped where sources disagree on the date.
Tropical zodiac, whole-sign houses, modern rulers. Aspects on the western_v1 orb policy; minor ones at 1.5° to 2.5°, skipped where a major already holds. Minor bodies from JPL Horizons heliocentric vectors, Lilith as mean apogee. Dominance is an AsterNym score — rulerships, dispositors, aspect count — so other methods can name a different leader.
Portrait by Konrad Jacobs, Erlangen, Copyright by MFO / Original uploader was AEDP at it.wikipedia, CC BY-SA 2.0 de, via Wikimedia Commons.
The same Alexander Grothendieck at Wikipedia and MusicBrainz.
Roster last reviewed September 10, 2026. The full method: how it works.
Traditional interpretations, not facts or predictions, and not endorsed by Alexander Grothendieck.
Quick answers about Alexander Grothendieck’s chart
- What zodiac sign was Alexander Grothendieck?
- Alexander Grothendieck was an Aries: born March 28, 1928, which puts the Sun in Aries for the whole of that day.
- What was Alexander Grothendieck's Chinese zodiac animal?
- The Dragon, with the Earth element, from the Chinese lunar year of the March 28, 1928 birth.
- What was Alexander Grothendieck's Life Path number?
- Life Path 6, calculated in numerology.
- What was Alexander Grothendieck's Chiron sign?
- Chiron in Taurus at 3°. Position from JPL Horizons.
- Where was Alexander Grothendieck's Black Moon Lilith?
- Mean Black Moon Lilith in Scorpio at 13°. This is the mean lunar apogee; the osculating Lilith some tables use can sit up to 30° away.
- What was Alexander Grothendieck's dominant planet?
- Mars, on AsterNym's dominance score (8 points: rules the Sun sign, Aries; disposes Sun, Jupiter, Uranus; 2 major aspects). Sun is second and Moon third. Other sites weight rulerships and aspects differently and can name a different leader.
