Supporters of King Henry and his Queen, Margaret of Anjou, have been loosely called "Lancastrians", the King being head of the House of Lancaster, while the duke and his party are considered "Yorkists", after his title of Duke of York. By the 1450s, York felt increasingly excluded from government, and, in May 1455—possibly fearing an ambush by his enemies—led an army against the King at the First Battle of St Albans. There, in what has been called more of a series of assassinations than a battle, the personal enemies of York and the Nevilles—the Duke of Somerset, the Earl of Northumberland, and Lord Clifford—perished.