The Duchess of Cambridge wore a £375 dress from one of her favourite high street designers L.K. Bennett for an engagement at the Natural History Museum.
Kate looked elegant in a black cocktail dress from Preen at the Place2Be awards.
Princess Eugenie glammed up in a black evening gown with lace detailing for the Elephant Ball.
Meanwhile her sister Princess Beatrice looked stylish in a Tommy Hilfiger gown as she joined their mum Sarah Ferguson at the Angel Ball in New York.
The Countess of Wessex wore a head-to-toe blue ensemble to attend a Service of Thanksgiving to celebrate 60 years of the Duke of Edinburgh's Award on Thursday.
The Queen wore a vibrant purple coat and co-ordinating hat, complete with floral bouquet.
Queen Letizia was stylish and sophisticated in a tweed top and tailored trousers for an engagement in Madrid.
Queen Maxima took a sartorial walk on the wild side in this leopard print ensemble.
Queen Rania also added a touch of leopard print to her look this week, choosing to accessorise her navy bell sleeve dress with an animal print handbag.