Heritage Open Day: The Priory Church of St Mary, known as Bridlington Priory, was founded in 1113 as an Augustinian monastery and is a stunning example of mediaeval architecture. There will be several Children's and Family activities available. The most illustrious of Bridlington’s priors, John of Thwing who died in 1379, was the last English saint to be created before the Reformation. As many as 15 miracles were attributed to Prior John during his lifetime and 12 afterwards. Pilgrims travelled to his shrine, including Henry V in 1421 and Henry VI in 1451. After the Dissolution of the Monasteries under Henry VIII, only the nave was left standing, which is the church we see today, and the entrance gate, which now houses the Bayle Museum.