[2] Kyriell served under Henry V of England in Normandy, and in 1436 held the fortress at Le Crotoy in Picardy.
[3] He served under John, Lord Talbot at this period, around Rouen, and was created knight-banneret by 1443.
[5] He was openly a Yorkist commander by 1460, as heavy fighting began in the Wars of the Roses.
[7] At the Second Battle of St Albans, eight days later, Kyriell was on the losing side captured while guarding the king, Henry VI of England, who was a Yorkist prisoner.
Margaret of Anjou had Edward of Westminster, Prince of Wales pronounce the fate of the Yorkist guard, and they were beheaded.