Palazzo Vecchio's exclusive role as the political representative of the city gradually lost importance from 1565 for three centuries, being partly replaced by the Uffizi and the new Palace at Pitti, though it came to the fore again at the end of this last century: after the Lorraine family had been expelled from the city in 1848, it became the seat of United Italy's provisional government from 1865-71, when Florence was the capital of the kingdom of Italy, and housed the Chamber of Deputies (the Senate sat next door in the Uffizi, linked up by an overhead passageway above Via della Ninna). It was to return to its original function as the seat of the City Council in 1872.