Erez Petrank's advisor was
Oded Goldreich, whose advisor was
Shimon Even, whose advisor was
Hao Wang, whose advisor was
Willard Van Oman Quine, whose advisor was
Alfred North Whitehead, who was also the advisor of Bertrand Russel, and whose advisor was
Edward John Routh, whose advisor was
William Hopkins and Isaac Todhunter. Hopkins' advisor was
Adam Sedgwick, whose advisors were
Thomas Jones and John Dawson. Jones' advisors were
Thomas Postlethaite and John Cranke. Postlethaite's advisor was
Stephen Whisson, whose advisor was
Walter Taylor, whose advisor was
Robert Smith, whose advisor was
Robert Cotes, who was one of the only two students of
Sir Isaac Newton, whose advisors were
Isaac Barrow and Benjamin Pulleyn. Barrow's advisors were
Vincenzo Viviani and Gilles Personne de Roberval. Viviani's advisors were
Galileo Galilei and Evangelista Torricelli. Galilei's advisor was
Ostilio Ricci, whose advisor was
Nicolo Fontana Tartaglia

Information based on the Mathematcal Geneology.