St Cybi's Church is a medieval church near the Roman Caer Gybi in Holyhead. The original church was constructed at Holyhead around 540 AD by St Cybi, a cousin of St David. The church was sacked by Viking invaders in the 10th century and damaged again in 1405 by Henry IV's invading force. The present church was built in the 13th century and stands near the Roman fort in Holyhead.
The present church of St Cybi's was built in between the 13th to 16th centuries. The chancel is one of the oldest parts of the church, dating to the 13th century. In 1897 a chapel designed by British architect Hamo Thornycroft was added to the south. Further renovations were undertaken in the 20th century. A sun dial is located on the south transept. Ornamental figures are located throughout the church, both inside and out.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.