(d. 1241), lord of Meath, a durable baron in Ireland and the Welsh marches who had a stormy relationship with King John. Walter succeeded to the Irish lands of his father Hugh de Lacy I (d. 1186) only in 1194, after backing Richard I during John's unsuccessful rebellion. He was a target of John's Irish expedition in 1210, when he forfeited Meath, but served him in France and was soon restored. Between 1216 and 1223 he supported the young Henry III, and became sheriff of Hereford. Thereafter he constantly crossed the Irish Sea and was a source of stability for the crown, remaining loyal in 1223–4 when his brother Hugh de Lacy II rebelled. Walter gave the new town of Drogheda a charter in 1194, advanced the building of Trim and other castles, and consolidated the settlement in Meath. On his death his lordships were divided between his two granddaughters.
From The Oxford Companion to Irish History in Oxford Reference.
Subjects: European History.