Ulster
The Earldom of Ulster was an Anglo-Norman lordship in northern Ireland, with a stronghold at Carrickfergus. In 1337 Elizabeth de Burgh was still an infant; her father William had been murdered in 1333.
Elizabeth married Lionel of Antwerp, son of Edward III, bringing her claim into the English royal family. By 1461, when the title reverted to the Crown, the earldom had dwindled to coastal enclaves around Carrickfergus and in Down.