Thucydides, son of Melesias, the leader of the anti-Periclean conservative party during the 440s BC, was a relative of Cimon and a member of the Philaid clan.
Thucydides, son of Olorus, the great historian of the Peloponnesian War was also a Philaid according to the biographer Plutarch who notes that his remains were returned to Athens and placed in Cimon's family vault and that his father's name, Olorus, was the same as Cimon's grandfather [REF].