sentences:  His father was the third son of Christopher Dillon, who was the eldest son and heir apparent of Theobald Dillon, 1st Viscount Dillon.The Dillons are an Old English family, established in 1185 when Sir Henry Dillon came to Ireland with Prince John.Lucas's mother was an illegitimate daughter of David Bourke, who was a younger son of Theobald Bourke, 1st Viscount Mayo.