sentences:  Matters further improved from 1366 with the appointment of Richard Wyche as prior.He was active in the governance of the wider Augustinian order and in political affairs, and in 1391 was involved in raising the priory's status to that of a mitred abbey.A mitred abbey was one in which the abbot was given permission to use pontifical insignia, including the mitre, ring and pontifical staff, and to give the solemn benediction provided a bishop was not present.