Alexander de Brus1285 - 1307 Born 1285 Died Wed, 9 February 1307 Carlisle Castle, Carlisle Details Parents Dean of Glasgow Alexander de Brus Lived 21 years, 7 months, 8 days Hanged, drawn and beheaded father Robert de Brus 1243 - 1304 mother Marjorie of Carrick 1253 - 1292 Siblings Sister Isabel Bruce 1272 - 1358 Brother Robert I 1274 - 1329 Sister Christina Bruce 1278 - 1356 Brother Nigel de Brus 1279 - 1306 Brother Edward Bruce 1280 - 1318 Sister Mary Bruce 1282 - 1323 Sister Margaret Bruce 1283 - 1320 Brother Thomas de Brus 1284 - 1307 Sister Elizabeth Bruce 1286 - 1320 Sister Margery Bruce 1287 - 1315