Nemo me impune lacessit was the Latin motto of a dynasty known in Gaelic as what ?
House of Stuart The House of Stuart, originally Stewart and, in Gaelic, Stiùbhart , was a European royal house that originated in Scotland. The dynasty's patrilineal Breton ancestors had held the office of High Steward of Scotland since the 12th century, after arriving by way of Norman England. The royal Stewart line was founded by Robert II, and they were Kings and Queens of Scots from the late 14th century until the union with England in 1707. Mary, Queen of Scots, was brought up in France, where she adopted the French spelling of the name, "Stuart". Her son, James VI of Scotland, inherited the thrones of England and Ireland upon the death of Elizabeth I in 1603. Except for the period of the Commonwealth, 1649–1660, the Stuarts were monarchs of the British Isles and its growing empire, until the death of Queen Anne in 1714.
Dalcassians The Dalcassians (Irish: "Dál gCais" ] ) were a Gaelic Irish tribe, generally accepted by contemporary scholarship as being a branch of the Déisi Muman, that became a powerful group in Ireland during the 10th century. Their genealogies claimed descent from Cormac Cas, who is said to have lived in the 3rd century AD. Their known ancestors are the subject of "The Expulsion of the Déisi" tale and one branch of their blood-line went on to rule the petty kingdom of Dyfed in Wales during the 4th century; probably in alliance with Roman emperor, Magnus Maximus.