The name 'Donaghadee' comes from Irish Domhnach Daoi, which has two possible meanings: "church of Daoi", after an unattested saint, or "church of the motte". Originally the site of a Gaelic ringfort, the Anglo-Normans built a motte-and-bailey castle on the site after they conquered the area in the late 12th century.Donaghadee History . Visit Donaghadee. Retrieved 21 November 2021.
