Princess Anne's pleated mother-of-the-bride dress at Zara Tindall's (née Phillips) wedding in 2011 is difficult to forget, but she wore another rarely-pictured gown the night before the wedding.

Mette-Marit, Crown Princess of Norway and her husband Crown Prince Haakon were among the well-known guests fêting Princess Märtha Louise's nuptials with Durek Verrett during a pre-wedding boat party ...