Peter of Aigueblanche (or Peter of Aquablanca or Peter d’Aigueblanche or Peter de Aquablanca; died 27 November 1268) was a medieval Bishop of Hereford. A nobleman from Savoy, he came to England as part of the party accompanying King Henry III's bride Eleanor of Provence. He entered the royal service, becoming bishop in 1241. He then served the king for a number of years as a diplomat, helping to arrange the marriage of Prince Edward. Peter became embroiled in King Henry's attempts to acquire the kingdom of Sicily, and Peter's efforts to raise money towards that goal brought condemnation from the clergy and barons of England. When the barons began to revolt against King Henry in the late 1250s and early 1260s, Peter was attacked and his lands and property pillaged. He was arrested briefly i