The east window of Beauchamp Chapel was made by John Prudde of Westminster around 1463. He was Royal Glazier to Henry VI.

Very specific instructions were given as to the design of the window - no black, green or white glass was to be used. The total cost was £100, very expensive.

The glass was vandalised by puritans in 1643, but has been skilfully restored with some figures being reconstructed from fragments. Only about half of the original glass remains in situ.

The window is divided into several parts:-

The upper tracery is contain scrolls with words and mottoes. There are coloured clouds with stars from which rays descend.

The lower tracery lights contain seraphim standing on golden wheels carrying scrolls and music with "Gloria in Excelsis".

The middle side lights bear the favourite Saints of Richard Beauchamp, namely St Thomas of Canterbury, (his mitre containing jewelled glass), Saint Alban, Saint Winifred, and St John of Bridlington.

The bottom panels contain figures from the Beauchamp family, and in the centre, kneeling as a donor is Richard Beauchamp. On his tabard he displays the arms of Beauchamp and Newburgh. In the original glazing scheme his two wives were probably on either side of him with their associated children. Unfortunately Richard's head has been replaced with a female head during restoration.

The three central panels are thought to have contained scenes of the Annunciation of the Virgin Mary, but now contain figures of a Prophet, possibly Isaiah, and possibly Saint Elizabeth. The third figure is a composite of the Virgin Mary, although a lot of glass has been taken from the side windows of the Chapel to form these composites.