Mantua is a city and comune in Lombardy. Mantua's historic power and influence under the Gonzaga family, made it one of the main artistic, cultural and notably musical hubs of Northern Italy and the country as a whole. Mantua is noted for its significant role in the history of opera and the city is known for its several architectural treasures and artifacts, elegant palaces or palazzi, and its medieval and Renaissance cityscape. It is the town to which Romeo was banished in William Shakespeare's play Romeo and Juliet. It is also the nearest town to the birthplace of the Roman writer, Virgil.
Mantua traces stem from the Roman period. It was renovated in the 15th and 16th centuries - including hydrological engineering, urban and architectural works. The participation of renowned architects like Leon Battista Alberti and Giulio Romano, and painters like Andrea Mantegna, makes Mantua a prominent capital of the Renaissance.
In 2007, Mantua's centro storico (old town) and Sabbioneta were declared by UNESCO to be a World Heritage Site.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.