Margaret of Anjou (French: Marguerite d'Anjou; 23 March 1430 25 August 1482) was the wife of King Henry VI of England. As such, she was Queen consort of England from 1445 to 1461 and again from 1470 to 1471 and Queen consort of France from 1445 to 1453. She led the Lancastrian contingent in the Wars of the Roses; and due to the king's frequent bouts of insanity, Margaret virtually ruled the kingdom in lieu of her husband. It was she who in May 1455 called for a Great Council which excluded the Yorkist faction, and thus provided the spark which ignited the civil conflict that lasted for over thirty years, decimated the old nobility, and caused the deaths of thousands of men.