Catherine Gladstone

Catherine Glynne Gladstone (6 January 1812 – 14 June 1900) was the wife of British Prime Minister William Ewart Gladstone from 1839 to his death.

Catherine was unfaithful to her husband. The Assassin Jacob Frye took advantage of this by pretending to be a lover of hers in order to steal an invitation to a party at Buckingham Palace.

Reference

 * Assassin's Creed: Syndicate