St Ellyw's Church is an Anglican parish church built in the medieval period, possibly in the 15th century. The church was a parish church in medieval times, being first mentioned in eleventh century documents. In the thirteenth century the living was in the gift of the Lord of Kidwelly, Patrick de Chatworth, but with his death the patronage passed to the Crown. In the late fourteenth century John of Gaunt was entitled to receive the tithes at the collegiate church of St Mary, Leicester. There were four subordinate chapels in the parish before the Protestant Reformation.
The church dates back to the medieval period, possibly the fifteenth century. The west tower is the oldest part of the building, the rest having been added by George Frederick Bodley of London in 1905–06. The church is built of rock-faced rubble stone with decorative red sandstone dressings, stone-coped gables, green slate roofs and terracotta ridge tiles. There is an octagonal chimney between the chancel roof and the nave roof, and there is a large porch at the south end. The tower has a corbelled parapet, a clock halfway up the south side and a square stairwell on the north side.
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.