Princess Eugenie turns heads in a plunging floral embellished dress as she is joined by sophisticated sister Beatrice at royal wedding in Peru

One of the siblings are set to tie the knot with long-term boyfriend Jack Brooksbank in the autumn.

And Princess Eugenie beamed with delight as she was joined by her sister Beatrice at the wedding of Prince Christian of Hanover and designer bride Alessandra de Osma in sunny Peru on Friday afternoon.

The newly-engaged royal, 27, cut an elegant figure as she slipped into a semi-sheer green dress, embellished with delicate floral prints throughout.

Elegant: Princesses Eugenie and Beatrice beamed with delight at the wedding of Prince Christian of Hanover and Alessandra de Osma in sunny Peru on Friday afternoon

Elegant: Princesses Eugenie and Beatrice beamed with delight at the wedding of Prince Christian of Hanover and Alessandra de Osma in sunny Peru on Friday afternoon

The flame-haired beauty teamed her ensemble with a pair of chic pointed heels and toted a designer half-circle bag.

Soaking up the sun in the hot country, Eugenie shielded her eyes with stylish cat-eye glasses.

Princess Beatrice, 28, showcased her slender figure in her navy off-shoulder frock, which featured dainty pleats along the rim of the dress. 

Chic: The newly-engaged beauty, 27, and her sister, 28, donned floral-embellished frocks at the star-studded bash

Chic: The newly-engaged beauty, 27, and her sister, 28, donned floral-embellished frocks at the star-studded bash

The strawberry blonde beauty added to her height in a pair of matching sandal heels and accentuated her beauty with heavy eyeliner. 

They appeared in high spirits as they attended the glitzy wedding of Christian and Alessandra - who officially tied the knot five months ago in a small but stylish affair at Chelsea and Westminster Registry Office.  

A host of glamorous guests including several members of European royalty have decamped to the bride's native Peru, where the Prince and designer kicked off a weekend of festivities with a cocktail party on the eve of the ceremony.

The happy couple: Peruvian Alessandra de Osma and her husband Prince Christian of Hanover can't help but smile as they arrive at their second wedding

The happy couple: Peruvian Alessandra de Osma and her husband Prince Christian of Hanover can't help but smile as they arrive at their second wedding

Eugenie is expected to walk down the aisle in the coming months with her fiancé Jack, who popped the question in Nicaragua in January with a unique padparadscha sapphire surrounded by diamonds.

The sparkler bears a striking similarity to the one Eugenie's mother, Sarah Ferguson, was presented with by her ex-husband Prince Andrew, when they became engaged back in 1986 - although Fergie's ring was set with a pink Burma ruby.

Eugenie and Jack are now set to exchange vows at Windsor Castle - in the same chapel that will play host to Prince Harry and Meghan Markle's nuptials in May. 

Sweet: Alessandra arrived alongside her father Felipe de Osma who looked delighted

Sweet: Alessandra arrived alongside her father Felipe de Osma who looked delighted

They're next! Eugenie and Jack Brooksbank are now set to exchange vows at Windsor Castle in the autumn (pictured January 22)

They're next! Eugenie and Jack Brooksbank are now set to exchange vows at Windsor Castle in the autumn (pictured January 22)

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