Pythagoras the first pure mathematician. He
was born on the island of Samos, Greece in 569 BC. His father, Mnesarchus, was a gem merchant. His mother's name was
Pythais. Pythagoras had two or three brothers.
Some historians say that Pythagoras was married to a woman named Theano
and had a daughter Damo, and a son named Telauges, who succeeded
Pythagoras as a teacher and possibly taught Empedocles. Others say that
Theano was one of his students, not his wife, and say that Pythagoras
never married and had no children.
Hope it helps you.