What is really quite anomolous about the Priory Church is that behind the altar there is a transparent screen and metal grille with the Fitzalan Chapel, the burial place for the Dukes of Norfolk, beyond. This chapel, from 1380 the Church's Chancel and Collegiate Chapel of the College of priests until 1544 with the dissolution of the Priory. It fell into disrepair, was used as a workshop, was used as a stable by Cromwell's troops and was restored in the nineteenth century. In 1874 an iron curtain descended between it and the church and a case was fought in the High Court over its ownership. There has only been several openings of the grille since that date, the two halves representing the only example of the Roman catholic and Anglican churches worshipping under one roof in England.