Mary of Lancaster1320 - 1362 Born 1320 Died Wed, 1 September 1362 Alnwick Buried Alnwick Details Parents Baroness Percy Mary Plantagenet Lived 42 years, 2 months father Henry of Lancaster 1281 - 1345 mother Maud Chaworth 1282 - 1322 Siblings Sister Blanche of Lancaster 1305 - 1380 Brother Henry of Grosmont 1310 - 1361 Sister Maud of Lancaster 1310 - 1377 Sister Joan of Lancaster 1312 - 1349 Sister Isabel of Lancaster 1317 - 1347 Sister Eleanor of Lancaster 1318 - 1372
