The Sirotci ("Orphans"; ), officially Orphans' Union , were followers of a radical wing of the Hussites in Bohemia. This force, founded in 1423 originally under the name Lesser Tábor, consisted mostly of poorer burghers and some members of lower aristocracy, who joined with commander Jan Žižka and the eastern Bohemian Hussites, the so-called Orebites (Orebité).