After Plato 's death , c. 348 BC , Speusippus inherited the Academy , near age 60 , and remained its head for the next eight years .
Speusippus was Plato 's nephew by his sister Potone .
After Plato 's death , c. 348 BC , nephew inherited the Academy , near age 60 , and remained its head for the next eight years .
Speusippus was Plato 's nephew by his sister Potone .