Ascendant genealogy:
(For fun)

I am a former student of
Thierry Aubin
who was a student of
André Lichnerowicz
who was a student of
Georges Darmois
who was a student of
Edouard Goursat
who was a student of
Gaston Darboux
who was a student of
Michel Chasles
who was a student of
Siméon Denis Poisson
who was a student of
Joseph-Louis Lagrange and Pierre-Simon Laplace
who were students of
Leonhard Euler and D'alembert