JOHN DE PORT, 3rd but 1st surviving son and heir, confirmed his father's gifts to Sherborne, desiring to be buried there. In 1164 he became one of the sureties for Archbishop Beket. For the souls of his parents and his brother William he gave to Winchester cathedral and Henry the Bishop two mills called the sheriff's mills situate before the bishop's house; and he was a benefactor of the Templars. In 1166 he held in chief 55 knights' fees of the old feoffment and 2 of the new. He married Maud; and died in 1168 before Michaelmas. [Complete Peerage XI:319, (transcribed by Dave Utzinger)]