Kizichesky Vvedensky Monastery is a small male monastery in Kazan. It was founded in 1691 by Adrian—the Moscow Patriarch, who until 1690 were the Kazan Bishop. The name Kazichesky means Holy Martyrs of Cyzicus. The monastery was devoted to the martyrs because parts of their relics were brought to the monastery—according to the wishes of Adrian. In the 1690s Vvedensky Cathedral and Vladimirskaya Church were built. Vvedensky Cathedral was destroyed during the Soviet epoch. Ilya Andreevich Tolstoy (the grandfather of Lev Tolstoy) is buried in the monastery.
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.