A crazy little hat - Crown Princess Victoria at the ordination of a new bishop at Uppsala Cathedral on August 26, 2012.
Pink and Petals! Princess Haya makes a fashion statement in a bright pink hat while attending Ladies Day during Royal Ascot, June 21, 2012.
Source: Horsenation, Photoshot
12 April 2003, Crown Princess Mathilde with a pink Maison van den Borne hat at the wedding of her broter-in-law Prince Laurent to Claire Coombs.
D. The Netherlands
A selection of Queen Maxima's statement hats.
Source: Zimbio - The Royal Hats Blog
E. Great Britain
A Princess in fine feather- Princess Diana's many feathered hats.
Source: Getty Images, Rex Features, Popperfoto and WireImage
Infanta Elena attending a wedding wearing a huge crazy hat.
Queen Sonja is pictured wearing one of UFO-shaped hats, while Crown Princess Mette-Marits wears a black feather hatpiece.
Queen Margrethe's blue curly-cue hat, she liked it so much she wore it- thrice? The queen wore this hat to her own 70th birthday celebrations in April of 2010, to her grandchildren's christening on 14 April 2011 (the christening of Prince Vincent and Princess Josephine), and a royal wedding- the wedding of Prince William and Catherine Middleton, 29 April 2011.
Source: NY Daily News