William Seton was the son of Sir Alexander Seton 1st
Lord Gordon and his wife Elizabeth Gordon, and
grandson of Sir William Seton 1st Lord Seton.
He married the heiress Elizabeth de Meldrum and
founded the Seton's of Meldrum, Baron's of Meldrum,
Chamberlains to the Earls of Huntly and Dunfermline,
as well as Chancellors of Aberdeen. The direct line
ended with Elizabeth who inherited Meldrum from her
uncles John and William (7th and 8th of Meldrum).