 His branch of the Mosley family was the Anglo-Irish family at its most prosperous, landowners in Staffordshire seated at Rolleston Hall near Burton-upon-Trent.His father was a third cousin to the 14th Earl of Strathmore and Kinghorne, father of Lady Elizabeth Bowes-Lyon the wife of Prince Albert, second son of King George V eventually becoming King George VI.Elizabeth reigned as his Queen from 1936 to 1952.