The Earldom of Ulster was formed by five countries .
It was merged into County Antrim in 1777 . *Twescard , Blathewyc ( Newtonards ) , del Art ( Ards ) , Ladcathel ( Lecale ) , four of seven counties that formed the Earldom of Ulster in 1333.Bardon , Jonathan , A History of Ulster , page 45 .
Counties of Northern Ireland