http://agathe.gr/democracy/the_boule.html
The Boule (The Senate) The Athenian legislature also included a deliberative body known as the Boule. It was made up of 500 members -- 50 from each of the 10 tribes -- who were chosen by lot and served ... The deities of the Boule were Zeus Boulaios, Athena Boulaia, and Hestia (goddess of the hearth) Boulaia. Despite the religious aspects of the building, violence and sacrilege occurred occasionally during troubled political times, as in 404/3 B.C.: Theramenes leaped to Hestia Boulaia ...