The Isle of May Priory was a community of Benedictine monks established for 9 monks of Reading Abbey on the Isle of May in the Firth of Forth. It had been founded by 1153, under the patronage of David I of Scotland. The priory passed into the control of St Andrews Cathedral Priory in the later 13th century, and by 1318 had been relocated to Pittenweem (see Pittenweem Priory).
Mary of Guelders, bride of James II, visited the island and the shrine of St Adrian in June 1449, according to Mathieu d'Escouchy. On 24 August 1539 Mary of Guise and James V made a pilgrimage to the Isle of May. They took three ships, the Unicorn, the Little Unicorn, and the Mary Willoughby. It was believed that a visit to the shrine of St Adrian could help a woman become pregnant.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.