Elizabeth Stewart was born circa 1494 to John Stewart, 1st Earl of Atholl (c1440-1512) and Eleanor Sinclair (c1457-1518) . She married John Stewart, 3rd Earl of Lennox (c1495-1526) 29 January 1511 JL .
William Mountbatten-Windsor (1982)/ancestors numbers 66865 and 216145 (and so consequentually 67377, 67889, 141169, 141233, 141425, 141489, 146289, 146353, 147249, 157809, 157873, 161841, 165937, 169265, 169777, 170289, 172913, 172977, 173873, 88113, 89393, 100609, 100929, 107905, 112641, 226257 and 226385).
Children
| Name | Birth | Death | Joined with |
| Matthew Stewart, 4th Earl of Lennox (1516-1571) | 21 September 1516 | 4 September 1571 | Margaret Douglas (1515-1578) |
| Robert Stewart, Earl of March (c1517-1586) | |||
| Helen Stewart (c1518-1564) | 1518 | 25 November 1564 Flanders | William Hay, 6th Earl of Erroll (c1521-1541) John Gordon, 11th Earl of Sutherland (1525-1567) James V, King of Scotland (1512-1542) |
| John Stewart, 5th Seigneur d'Aubigny (c1519-1567) | 1519 | 31 May 1567 | Anne de la Queuille (-c1579) |
| Elizabeth Stewart (c1520-bef1564) | |||