Queen Letizia and Queen Rania, and More Stylish Royals Who Are Also Best Friends

Kate Middleton's young children and busy schedule typically don't allow her to socialize with many royals other than hubby Prince William. She has managed to fit in some off-duty hang time with William's cousin Zara Phillips, a granddaughter of the queen (her parents refused a royal title for her, though she is still in the line of succession). When they celebrated the 60th anniversary of Queen Elizabeth's coronation, the pair displayed similar style sensibilities: classic, feminine shapes done equally as often in brights or neutrals. The women both look flawless, but neither are members of the royal family who will be pushing any style envelopes.

Squad style essentials: feminine party dresses, neutral heels

Denmark's Princess Mary and her stylish sister-in-law Princess Marie both truly appreciate fashion, a fact underlined by the fact that they're often spotted at fashion shows together (here at the Malene Birger show at Copenhagen Fashion Week). It's the details of these sleek outfits that really impress: When looking closer, you'll notice Mary's collar is high and ruffled, and her cape allows oxblood gloved hands to peek out. Marie's black blazer has wide opening at the chest before fastening directly at her middle, creating a silhouette more intriguing than a classic schoolboy cut.

Squad style essentials: basics with unique cuts or accents, trendy toppers

MORE: Princess Mary Has a Major Connection to Ladies of London!