Walter Stewart, 6th Great Steward of Scotland; born 1292; Regent of Scotland during Rober t I (The Bruce)'s absence in Ireland1316, defended Berwick against an English army, made a raid with Douglas that nearly kidnapped Edward II from Yorkshire 1322; married 1st 1315 Marjorie, Lady of Scotland (died 1316),daughter of Robert I (The Bruce), and had issue; married 2nd Isabel, daughter of Sir John Graham of Abercorn, and died 9 April 1327. [Burke's Peerage]
Walter Stewart, b. 1292, d. 9 Apr 1326; m. (1) Marjory Bruce, by whom Robert I, King of Scots ; m. (2) Isabel Graham, sister ofSir John Graham of Abercorn. [Magna Charta Sureties]
Note: I think MCS means Robert II, King of Scots as their child,ofcourse she was daughter of Robert I.
Walter Stewart, b. 1292, d. 9 Apr 1327 (buried at Paisley,Scotland),High Steward of Scotland , son of James Stewart (d. 16July 1309) and Egidia de Burgh. [Magna Charta Sureties]