McDonnell anglicises the Gaelic Mac Domhnaill, "son of Domhnall," and is the Irish form of the same name as the Scottish MacDonald. The McDonnells came to Ireland as gallowglass warriors and rose to become Lords of the Glens of Antrim and later Earls of Antrim, ruling from their stronghold at Dunluce Castle on the north Antrim coast; a separate McDonnell family were chiefs in Clare and Connacht.
The Gaelic form and regional setting are the useful starting points for research, since a modern surname can represent more than one historic line.
The McDonnell collection currently includes mug, woven blanket, T-shirt, novelty license plate, coaster set, garden flag, and ceramic ornament. The woven blanket is the most substantial home piece where available. Designs use the McDonnell name and crest; where Irish National Tartan appears, it is a shared Irish heritage background rather than a hereditary family tartan.
For the fuller surname history and regional context, read our McDonnell Irish surname history.