Edward of Norwich, 2nd Duke of York by a French chronicler to have betrayed to the king a conspiracy at the end of 1399 by a group of Richard II's former favourites who planned to murder Henry IV and his sons at a jousting tournament at Windsor Castle on 6 January 1400. But according to James Tait, contemporary English sources that describe the conspiracy make no mention of Edward, and his role in it is open to question. In October 1400, the king made Edward Keeper of North Wales, and on 5 July 1401, his lieutenant in Aquitaine. On 1 August 1402, Edward's father died, and he
Edmund de Lacy, Baron of Pontefract his mother Margaret de Quincy and on her death would have inherited the Earldom of Lincoln that vested in her. (His father had only been Earl by rights of his wife.) As he predeceased his mother he never became the Earl of Lincoln. He was an important landholder in northern England, with a strategic manor at Stanbury which was important for east-west communication, and as Lord of the Honour of Pontefract he possessed Pontefract Castle. He was brought up at the royal court of Henry III of England and Eleanor of Provence, and made a 'Savoyard' marriage to one of