Tatiana Santo Domingo is getting married to Monaco royal Andrea Casiraghi this weekend, but before she says "I do" she gathered her closest girlfriends, including Andrea's pregnant sister Charlotte Casiraghi, her stylish aunt Lauren Santo Domingo, and Italian socialite Bianca Brandolini, for a picture-perfect bachelorette party aboard a luxury yacht. Tatiana wore a red and cream Missoni design — her best friend Margherita Missoni had to miss out on the celebrations because she's heavily pregnant, and lamented on Instagram that she's suffering from FOMO (fear of missing out) — while her beautiful friends were dressed in varying white, cream and lace ensembles. They all topped off their looks with matching floral crowns. If this is just the bachelorette party, we can't wait to see the wedding! Click through for more dreamy shots of Tatiana's last days before getting hitched.
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