Also inside the Ryazan Kremlin is the Spaso-Preobrazhensky Monastery. It is not exactly clear when the monastery was founded but it is known that is existed at least as far back as the mid-15th century. It is dedicated to the Transfiguration of the Saviour ('Spasa Preobrazhenie') after which it is named. It is partially surrounded by walls which date from the mid-18th century. In 1929 the monastery was closed and given over to a hospital, before being transferred to the Ryazan Historical and Architectural Museum-Reserve in 1935. From 1996 onwards the buildings of the former monastery were gradually returned to the Orthodox Church and in 2005 a decision was adopted to reopen the monastery.

Transfiguration of the Saviour Cathedral

The monastery's main cathedral is the Transfiguration of the Saviour Cathedral which was consecrated in 1702, having been built using the funds of a local merchant. In form it is a pillarless cube structure with three apses and a single small dome and decorated with carved window frames and false arched gables. After it was closed in the Soviet period it housed an archive until it was returned to the Orthodox Church in 2007.

Epiphany Church

The pretty Epiphany Church was built in the mid-16th century to replace an earlier version that was destroyed by fire in 1647. It is an example of what is sometimes called a 'ship-like' church due to its form with a cube structure topped by five golden domes attached to a tent-dome bell tower via a closed vestibule. The church was returned to the Orthodox Church in 2007, previously it had held the archive of the city's registry office.

St John the Theologian's Church

St John the Theologian's Church is located in the centre of what was once the Noble Guesthouse, namely a guesthouse for the nobility rather than the lower classes who were accommodated in the Commoner Guesthouse. The whole complex was built in the 18th and 19th centuries, although it does incorporate some structures dating from the 17th century. After the Revolution, it was closed and briefly used as housing and then transferred to the Ryazan Museum-Reserve. In 1995 it was returned to the Orthodox Church, which has turned it into a spiritual seminary.