 Within the city itself , he supervised a longer period of the construction of the modern St Mark 's Basilica than any other Doge . The basilica 's complex architecture and expensive decorations stand as a testament to the prosperity of Venetian traders during this period . The essentially democratic way in which he not only was elected but also removed from power was part of an important transition of Venetian political philosophy . The overthrow of his rule in 1084 was one of many forced abdications in the early history of the republic that further blurred the lines between the powers of the Doge , the common electorate , and the nobility . 
