Richard Mór de Burgh, 1st Lord of Connacht

Richard Mór de Burgh (1194–1243), eldest son of William de Burgh, was a ward of the English crown after his father died in 1206 and came of age in 1214. Appointed seneschal of Munster in 1223, he claimed Connacht, his father's grant, and was confirmed in it in 1227. He served as justiciar of Ireland from 1228 to 1232.

In 1235 he drove Felim Ua Conchobair from Connacht with a feudal host, taking the title Lord of Connacht. In 1236 he built a castle at Loughrea and also founded Galway. He fell ill on a voyage to France and died in 1243.