Ashridge Priory was a medieval college of Austin canons called variously the "Brothers of Penitence" or the "Boni Homines". It was founded by Edmund of Almain in 1283 who donated, among other things, a phial of Christ's blood to the abbey. It was granted to Mary Tudor, Queen of France and later became the private residence of the future queen Elizabeth I. It was acquired by Sir Thomas Egerton in 1604 and then passed down to the Duke of Bridgewater before being demolished.

Edmund of Almain was the second Earl of Cornwall of the fourth creation from 1272. He joined the Ninth Crusade in 1271, but never made it to the Holy Land. He was the regent of the Kingdom of England from 1286 to 1289 and the High Sheriff of Cornwall from 1289 to 1300.