Catholics and Protestants will gather at Lambeth Palace - Welby’s London home - to express remorse and pray for Christian unity.
Although the physical atrocities against Catholics took place during the reigns of Henry VIII, Elizabeth I and Edward VI, Catholics (and Jews) were not allowed to vote, sit in Parliament or attend universities until the middle of the 19th century.
Source: Crux - "Archbishop of Canterbury to express remorse over Reformation violence", Crux Religion News Service, 17 January 2017, https://cruxnow.com/rns/2017/01/17/archbishop-canterbury-express-remorse-reformation-violence/