This Day in History: 1215-06-15
On 15th June 1215, William de Warenne, 5th Earl of Surrey and lord of Sandal castle, was one of the advisers and supporters of King John advising the King to accede to Magna Carta. He was in stark contrast to John de Lacy of Pontefract Castle who was one of the 25 rebel barons, united in their dislike of John, actively trying to force the King to observe Magna Carta. William was named in Magna Carta. The following year, William left King John and supported Prince Louis of France’s (later King Louis VIII) claim to the English throne. The claim of Prince Louis failed and William subsequently sided with King John’s son Henry III.