Seymour married in 1911 Lady Victoria Alexandrina Mabel FitzRoy (died 1969), daughter of the Rev. Lord Charles Edward FitzRoy, son of
Augustus FitzRoy, 7th Duke of Grafton, and a
goddaughter of
Queen Victoria; they had two sons and a daughter.
George Fitzroy Seymour, sometime
High Sheriff of Nottinghamshire, was Seymour's son; the writer
Miranda Seymour is his granddaughter. == References ==