Mentioned by The Crazy Tourist
15 Best Things to Do in Portsmouth (Hampshire, England
"The oldest architecture at Portsmouth Cathedral goes back to a 12th-century chapel dedicated to the slain Archbishop of Canterbury Thomas Becket. This was almost totally obliterated in 1642 during the English Civil War, and only the Early English Gothic transept and choir survived. In the chancel there’s a monument to George Villiers, 1st Duke of Buckingham, who was assassinated by an army officer at the Greyhound Pub in Portsmouth in 1628."