Dictionary of National Biography, 1885-1900/Bertram, Roger (fl.1264)

BERTRAM, ROGER (fl. 1264), baronial leader, was son of Roger Bertram, d. 1242 [q. v.] He did homage for his lands on attaining his majority, 28 June 1246 (Fin. 30 Hen. III, m. 6), and, joining the baronial party at the outbreak of the barons' war, was among the prisoners captured at Northampton by the king, 5 April 1264 (Fin. 48 Hen. III, m. 4), whereupon his castle of Mitford was seized and entrusted to William de Valence (Pat. 48 Hen. III, m. 14). Released by the victory of Lewes (13 May 1264), he was one of the eighteen barons summoned to Simon de Montfort's parliament, 14 Dec. 1264 (Claus. 49 Hen. III, m. 12 dors.), but is not further mentioned. He was compelled to alienate most of his property, and was dead in 1275, when his widow had remarried a Robert de Nevill, and his son was claimed as a ward of the crown (Rot. Hun. 3 Ed. I).

[Dugdale's Baronage, i. 544 ; Lords' Reports on the Dignity of a Peer, i. 142; Hodgson's Northumberland, ii. (ii.) 36, 40.]

J. H. R.