Clan Sweeney is an Irish clan of Scottish Highlands origin. The Mac Suibhne family did not permanently settle in Ireland before the beginning of the 14th century, when they became Gallowglass soldiers
Castle Sween, thought to have been built by Suibne, son of Dunslebh, son of Aodh of Buirche (Hugh the Splendid), son of Ánrothán.
A plate from The Image of Irelande, by John Derricke, published in 1581. The chief sitting at his table, entertained by his bard and harper is thought to be a "Mac Sweyne".[citation needed]
Castle Doe, Barmkin and Keep.
Suibhne mac Duinnshléibhe was a late 12th-century, and early 13th-century, lord in Argyll. He does not appear in contemporary records, although his name appears in the patronymic names of two of his s
Clan Sweeney
…Chonaill. The clan also claims an Irish descent from a prince of the Uí Néill dynasty. However this is doubted by other commentators, see Wikipedia page Suibhne mac Duinnshléibhe Leabhar Clainne Suibhne states that after Áed's death, although his older brother Domnall was the rightful heir, Ánrothán was chosen instead to be king…
Interior of Castle Sween.