The ideological founder of the Orebites was the priest Ambrož Hradecký. Leaders included Hynek Krušina of Lichtenburg and Diviš Bořek of Miletínek, the captain of the Hussites in Eastern and Central Bohemia. The Orebites were instrumental in the burning of the Benedictine monastery in Mnichovo Hradiště in the early summer of 1420, and in autumn, they supported the rest of the Hussites at the Battle of Vyšehrad. In 1423, they merged with the "Sirotci" of Jan Žižka.