Dominic Cummings & Mary Wakefield – 11 Year

Another big player in the Brexit campaign, Dominic Cumming served as the director of Vote Leave, the organization that successfully campaigned for the public to vote for Britain to leave the EU. This was from 2015 to 2016, and since then he has held various positions including as Chief Adviser to Boris Johnson.

Not only is his wife the sister of his friend and director of the Firtash Foundation Jack Wakefield, but she also worked at The Spectator, a weekly magazine where she once worked under Boris Johnson. She is also the daughter of 2nd Baronet, of Chillingham Castle in Northumberland Sir Humphry Wakefield. They have one child.