sentences:  He was son and heir of Lucas Dillon of Loughglynn, who had been the second son of Theobald Dillon, 1st Viscount Dillon.At the time of Theobald's birth, the Dillons of Loughglynn were a cadet branch of the Viscounts Dillon.Theobald's mother was a daughter of John Dillon of Streamstown.