Crema, Lombardy
By the 1859 Treaty of Zurich which ended the Austro-Sardinian War, Austria ceded Lombardy, including Crema, to France, who then immediately ceded it to Sardinia. This formed part of the "Risorgimento", which saw Sardinia become the Kingdom of Italy in 1861. In 1946, the Kingdom became the modern Italian Republic.
Byzantine Sardinia
The Byzantine age in Sardinian history conventionally begins with the island's reconquest by Justinian I in 534. This ended the Vandal dominion of the island after about 80 years. There was still a substantial continuity with the Roman phase at this time. The invasion of Italy by the Longobards in 568, which changed the face of Italy, only resulted in a few coastal raids on Sardinia.