The Casiraghi Trio / Casiraghi Trio (or C3) refers to the first three children of Princess Caroline of Monaco and her second husband, Stefano Casiraghi (1960-1990). Their maternal grandparents are the late Prince Rainier III of Monaco (1923-2005) and the also late Princess Grace (192-1982), formerly Hollywood actress Grace Kelly. The Casiraghi's hold no styles or titles. / by Casiraghi Trio
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