Princess Eugenie and Lady Amelia Windsor, one of the lesser known royals stole the show at the thanksgiving service for Queen Elizabeth II at St Paul’s Cathedral Friday. She was one among the 54 royals, who gathered for the church service, kicking off the nonagenarian royal’s official birthday weekend.

The 20-year-old has been crowned the “most beautiful member of the royal family” in Tatler magazine’s April issue. She is the daughter of the queen’s cousin Prince Edward, the Duke of Kent. Amelia, who always keeps a low profile, wowed in a head-to-toe Chanel look.

The youngster opted for a black dress by French fashion house Chanel. Amelia’s chic black shirt dress featured a pleated front with fluted tweed sleeves and bow detail. She paired her look with black strappy heels with pearl and diamante detailing and a monochrome hat.

Lady Amelia Windsor, daughter of Duke of Kent keeps a low profile Britain's Prince Andrew (L), Prince Edward (C) and his wife Sophie Countess of Wessex leave with their children after a service of thanksgiving for Queen Elizabeth's 90th birthday at St Paul's Cathedral in London, Britain, June 10, 2016. Photo: REUTERS/Peter Nicholls

The University of Edinburgh student, who completed an internship at Chanel flaunted red manicure. She also carried a yellow quilted Chanel handbag that pop of color to her stylish ensemble. The young royal is quickly capturing the attention of the fashion world with her sartorial style and sat front row at the Christian Dior SS17 Cruise collection show in May.

Amelia arrived at the church service with her older sister Lady Marina Windsor, who wore a tweed skirt suit and black fascinator for the special occasion. Meanwhile, Princess Eugenie turned heads in a red dress with a cut-out neckline from British label Eponine’s Spring/Summer 2016 collection.

The 26-year-old paired her outfit with a navy bow fascinator. She wore a pair of patent black court shoes. Eugenie’s older sister Beatrice did not make a mark in an elaborately patterned black and white coat from Burberry. It added bulk to her frame, although she was certainly ultra-coordinated with a cream disc fascinator featuring a large black bow by Sarah Cant.

Zara played it safe and looked stunning in a navy and blue floral dress with pale blue fascinator with navy feathers. She paired it with navy high heels.

Sophie, the Countess of Wessex opted for an ivory gray midi dress with matching fascinator. She paired her look with nude high heels and matching clutch bag.