Robert Tredwye was the first prior of Mount Grace Priory

Mount Grace Priory

Mount Grace Priory, in the parish of East Harlsey, North Yorkshire, England is today the best preserved and most accessible of the ten medieval Carthusian houses in England....

 on its founding in (about) 1398. He is attested in a medieval charter

Charter

A charter is the grant of authority or rights, stating that the granter formally recognizes the prerogative of the recipient to exercise the rights specified...

, created between 18 February and 20 April 1398, now held in the collection at Ripley Castle in Yorkshire

Yorkshire

Yorkshire is a historic county of northern England and the largest in the United Kingdom. Because of its great size in comparison to other English counties, functions have been increasingly undertaken over time by its subdivisions, which have also been subject to periodic reform...

.

The charter brings the Priory into existence and calls for prayers to be said for King Richard II

Richard II of England

Richard II was King of England, a member of the House of Plantagenet and the last of its main-line kings. He ruled from 1377 until he was deposed in 1399. Richard was a son of Edward, the Black Prince, and was born during the reign of his grandfather, Edward III...

, members of the
Duke of Surrey

Thomas Holland, 1st Duke of Surrey

Thomas Holland, 1st Duke of Surrey, 3rd Earl of Kent, 4th Baron Holland, KG, Earl Marshal was an English nobleman.-Early life and family:...

's family, and John and Ellen de Ingelby, and for masses to be said for various people including Thomas de Ingelby and Katherine his wife.