Twigg, Twiggley—It may sound strange but it is fact, these two names are the anglicised forms of Quigley in East Derry, Co. Antrim, and the City of Belfast. Fivey is another anglicised form. There were three septs of the O'Quigleys (O'Coigligh) in Ulster. Whether they were related I don't know; one next to the O'Dunlevys in Innishowen, one in Loughinsholin, Co. Derry, and one in South Monaghan.
Alphabetical Index of Surnames