Another king of this name appointed Peter Orseolo as his heir and fought Boleslaw I with Henry II .
Milo Fitzwater, the Earl of Hereford opposed one English king by this name that was captured by Ranulf of Gernon and Robert of Gloucester at the battle of Lincoln. Another king of this name appointed Peter Orseolo as his heir and fought Boleslaw I with Henry II . That English king's son died in the White Ship Incident and fought with his sister Maud in the Anarchy, while the other king of this name was crowned by Sylvester II, possibly on Christmas Day and canonized by Gregory VII. For ten points, give the name shared by the only King of England from the House of Blois and the first king of Hungary, known as "Saint".
Milo Fitzwater, the Earl of Hereford opposed one English king by this name that was captured by Ranulf of Gernon and Robert of Gloucester at the battle of Lincoln.
{Stephen}