William Martin, 1st Baron Martin

William was the eldest son of Nicholas Martin and Maud de Brain.

[citation needed] William took part in the battle of Falkirk on 22 July 1298.

[citation needed] They had the following children: William married secondly Amicia, widow of Henry de Pomeroy, Baron of Berry Pomeroy, she was a daughter of Geoffrey de Camville.

[4][5] William's eldest son inherited the family property and, via his marriage with Angharad, regained the lost territory of Kemes/Cemais.

The family would continue to hold lands in both England and Wales until the extinction of the senior line in 1326.