The title of Baron Segrave is a barony in the Peerage of England, created by writ in 1448. In 1878, the ancient barony of Mowbray was called out of abeyance in favour of the twentieth Baron Stourton. About two weeks later, the barony of Segrave was also called out of abeyance in his favour. Thereafter, the three baronies have remained united.
The family of Stourton is descended from Botolph Stourton of Stourton in the county of Wilts, who defended the pass of Glastonbury against William the conqueror till he obtained from that prince the terms he required.
Charles, seventh lord Stourton, fourth in descent from John, was convicted of murder in the reign of queen Mary, and executed 16 March 1557.
Baron Coniers of Hornby in the county of York 1502.