"The Wars of the Roses begin when forces under Richard, Duke of York, and the Neville earls of Warwick and Salisbury are refused a parley and rapidly defeat the armies of King Henry VI of England in St Albans, England. The king's commander, the Duke of Somerset, is killed, and the king is wounded and captured." ("22 May 1455" from The Hutchinson Chronology of World History)
Robin Clifford's father was killed during the Battle of St. Albans by the York army, making Robin a lifelong supporter of the Lancasters (The Fortunes of Perkin Warbeck, 99).
Vetted?
No