In addition to all this excellent work, Bishop de Rupibus built a chapel for the parishioners, the conventual church being reserved for the Prior and monks. This chapel stood in the angle between the walls of the choir and south transept, and was called St. Mary Magdalene Overy. In the reign of Richard II there was another fire, involving repairs; and then, as well as in the reign of Henry IV, Perpendicular features were introduced by Cardinal Beaufort, Bishop of Winchester (1405-1447), aided by John Gower, the "Father of English Poetry." The Cardinal is said to have restored the south transept at his own expense, and is there commemorated in a sculptured representation of his hat and coat of arms affixed to a pier by the door. The difference in style between the two transepts shows that on the north to be of somewhat earlier date, though it was probably not left untouched by the restorers. The poet Gower founded a chantry in the Chapel of St. John Baptist, in the north aisle, where he was eventually buried, and where daily masses were said for the repose of his soul before the Reformation. His monument was transferred to the south transept during the "repairs and beautifications" of 1832, but is now restored to its original place over the poet's remains in the fifth bay (from the west), of the north aisle of the nave. The chapel and chantry have unfortunately disappeared. In 1469 the stone roof of the old nave fell down. The accident has been attributed to the removal, in the reign of Richard II, of the flying buttresses by which the vault was originally supported, as is still the case with the choir walls. Another roof of groined oak was soon substituted, as less likely to suffer from its own weight. That it was not a specially light structure, however, may be inferred from the massive bosses preserved from it, and now to be seen on the floor of the north transept. [Illustration: FORMER WESTERN DOORWAY. _From Moss and Nightingale's "History"_ (1817-18).]