Tiversk or Tiversky gorodok (Finnish: Tiurinlinna) was a medieval Russian fortified settlement situated on an island of the River Vuoksi. The fort was 215–300 m long and 40–56 m wide. It gained in prominence in 1323 when the Treaty of Nöteborg established a Novgorodian-Swedish border in the immediate vicinity. It was then mentioned in the Nikon Chronicle in 1404, when the settlement was granted to Prince Yury of Smolensk as an appanage. Seven years later, the fort was sacked and destroyed by the Swedes during one of the Swedish-Novgorodian Wars.
The site of Tiversk was first identified and described by Jacob Groot in 1847. The remnants were excavated in 1888-1891 by Hjalmar Appelgren, Theodor Schwindt and Alfred Hackman, in 1971 by Anatoly Kirpichnikov, and in 1971-1974 by Svetlana Kochkurkina. Most remnants are dated end of the 13th-beginning of the 15th century. In 1890 archaeological works revealed a treasure trove with 13th-15th century Arabic silver coins. Some remnants dated 10th-early 12th century have also been discovered. The ramparts and stone walls of the settlement were 4.5 to 7 metres thick.References:
Soave castle was built in 934 to protect the area against the Hungarian invasions. It was remodelled by Cansignorio of the Scaliger family in the mid-1300s. in 1365 Cansignorio had the town walls erected and the Town hall was built in the same year.
The castle underwent various vicissitudes until, having lost its strategic importance, it was sold on the private market in 1596. In 1830 it was inherited by Giulio Camuzzoni who restored the manor and in particular the surroundings walls (with is twenty-four towers), the battlements and living-quarters.
Soave castle is a typical medieval military edifice, commanding the neighbourhood of the city from the Tenda Hill. It comprises a mastio (donjon) and three lines of walls forming three courts of different size. The outer line, with a gate and a draw bridge, is the most recent, built by the Venetians in the 15th century. It houses the remains of a small church from the 10th century.
The second and larger court, the first of the original castle, is called della Madonna for a fresco portraying St. Mary (1321). Another fresco is visible after the door leading to the inner court, and portrays a Scaliger soldier. The mastio is the most impressive feature of the castle. Bones found within showed it was used also as prison and place of torture.
The House called del Capitano (the Scaliger commander) houses Roman coins, weapons parts, medals and other ancient remains found during the most recent restoration. Adjacent is a bedroom with a 13th-century fresco with St. Mary and Madeleine and a dining room with medieval kitchenware. Another room houses the portraits of the most famous Scaliger figures: Mastino I, Cangrande, Cansignorio and Taddea da Carrara, wife of Mastino II; the portrait of Dante Alighieri testify an alleged sojourn of the poet in the castle.