Plean Tower comprises a small oblong tower house probably dating from the 15th century, and an adjoining 16th-century manor house.
Robert Bruce granted the barony of Plean, or Plane, to John d’Erth soon after 1314. The castle was probably built by Lord Somerville, who acquired the lands of Plean in 1449, through marriage.
An adjoining manor house was built in about 1528. In 1643 James Somervell, 8th Lord of Plane, sold the barony and lands to meet debts. It passed to the Nicholsons and the Elphinstones, but both the tower and the manor fell into disrepair. During the 1745 rebellion the Jacobite troops used the property.
Sir David Menzies restored the buildings in 1908, but by the 1930s they were again no longer in use. It was rebuilt from ruins by Nancy and John Patrick Wright and their sons in 1991-1997 to form a home and holiday accommodation.
Plean Castle originally had three stories and a garret, with parapet corbelling. In its rebuilt 1990s form there is a great hall in the tower with painted ceiling beams and a large fireplace. The adjoining modern 'manor house' is connected to the tower by a wooden walkway and is built over a vaulted basement surviving from the 1528 manor house.
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.