Sir James de Byron

✓ Sir James de Byron of Clayton, son of Sir Richard (d. c.1347) and Agnes; died about five years after his father; left two sons, Sir John (d. s.p.) and Sir Richard (d. June 1397), who succeeded his brother in 1380. 'Elizabeth widow of Sir James de Byron' occurs in a suit of 1353. Source: Victoria County History of Lancaster vol. IV (1911), 'Townships: Droylsden' (Clayton), pp.282-287 and fns.20-44 (british-history.ac.uk), read 2 Nov 2026. [DIRECT ANCESTOR OF THE COMPILER: flag added 2 Nov 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]