Child(ren):
William de Ros, Lord of Hamlake, Treasurer of England<br>Gender: Male<br>Alias name: Roos<br>Birth: 1369 - Stoke Albany, Northamptonshire, England<br>Occupation: a Privy Counsellor (P.C.).3 He held the office of Lord Treasurer from 1403 to 1404.3 He was invested as a Knight, Order of the Garter (K.G.) in 1404.3, Treasurer of England, 7th Baron Ros of Helmsley, Lord Treasurer of England, Lord treasurer of England<br>Marriage: Spouse: Margaret FitzAlan, Baroness de Ros - Oct 9 1394 - License<br>Death: Sep 1 1414 - Belvoir, Leicestershire, , England<br>Burial: 1414<br>Father: Thomas de Ros, 4th Lord of Helmsley<br>Mother: Beatrice de Ros (born de Stafford)<br>Wife: Margaret FitzAlan, Baroness de Ros<br>Children: Margaret Tuchet (born de Ros), Robert de Ros, John de Ros, Lord, Robert de Roos, Knight, William de Ros Unknown, Beatrice de Ros Unknown, Thomas de Ros, I, 8th Baron de Ros of Helmsley, Elizabeth de Ros, Alice de Ros Unknown<br>Siblings: Amy Fitzmaurice, Elizabeth de Ros, Baroness Cobham, John de Ros, 5th Baron de Ros of Helmsley, Robert de Ros, Eleanor de Ros, Thomas de Ros, Margaret Baroness Grey (born de Ros), Baroness Grey de Ruthyn, Maude Welles (born de Roos)
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