[2] Their ancestor was one Richard Ladde, grandfather of the Lord Chief Justice Sir Edward, who changed his name to Montagu in about 1447.
A case has been made out for the possibility that the Ladde alias came from a division among coheirs about 1420 of the remaining small inheritance of a line of Montagus at Spratton and Little Creton, also in Northamptonshire.
[1][4] He had married in 1675 the Lady Elizabeth Wriothesley, daughter of the 4th Earl of Southampton[4] and a descendant of the original houses of Montagu and Monthermer.
On his death in 1790, when the Dukedom became extinct, the Barony passed under a special remainder to his female-line grandson Lord Henry Scott, second son of the 3rd Duke of Buccleuch.
[6][7] Lord Henry Scott also inherited the Lordship of Bowland from his mother, the Duchess, having the title entailed upon him by his nephew, the 5th Duke, in 1827.