Career
Born in Mani, Stylianos was a descendant of the well-known Petros Mavromichalis that participated in the Greek War of Independence. He studied law and was president of the Areopagus (Court of Cassation. Greek: Άρειος Πάγος), the Supreme Court of Greece.
He was prime minister for a very short period, from 29 September to the 8 November 1963, of a transitional government.
He died in Athens.