Peregrine Hyde (Osborne), Marquess of Carmarthen 1712-1729, when he became the 3rd Duke of Leeds. He married his third wife, Juliana, in 1725.
Peregrine Hyde Osborne, 3rd Duke of Leeds was referred to as Marquess Carmarthen or Lord Carmarthen at the time.
Reference:
The Complete Peerage, vol. 7, p. 513
Dates: to
Occupation:
Relationship to Sloane: Virtual International Authority File: