What title is the husband of Philippa Charlotte Middleton heir to?
Pippa Middleton Philippa Charlotte Middleton ( ; born 6 September 1983) is an English socialite, author, columnist, and the younger sister of Catherine, Duchess of Cambridge. Middleton began receiving media attention with her appearance as the maid of honour at her sister's wedding to Prince William. After marrying James Matthews in 2017, she will be styled Lady Glen Affric should he inherit his father's title.
Ralph Percy, 12th Duke of Northumberland Ralph George Algernon Percy, 12th Duke of Northumberland, {'1': ", '2': ", '3': ", '4': "} (born 16 November 1956), styled Lord Ralph Percy until 1995, is an English aristocrat, hereditary peer and largely rural landowner.