Why did Henry VIII build Southsea Castle and what has it to do with his wives and the Mary Rose? All these questions and more are answered in this blog. Henry’s divorce from Catherine of Aragon caused him grave problems with the Pope and Kings of France and Spain. To save his throne from disaster, he built Southsea Castle to a new revolutionary design. Only a year after it was completed, a French fleet was present in the solent ready to attack and disaster struck. Henry based at Southsea Castle saw his premier ship, the Mar Rose, sink in front of his eyes without a shot being fired. Post Tudor history of Southsea Castle is also covered along with information and photos of what visitors to Southsea Castle can expect to see on a visit.