At 11:00 the royal guests joined grand duke Henri and grand duchess Maria Teresa for the opening of the new Museum for Modern Art Mudam.
Mary wore a new cardigan by Prada and a new skirt by Hugo Boss.
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At noon there was a picknick.
At night there was a private dinner and ball at Château Berg, the grand dukes' home.
Mary wore a new gown by Strenesse.
The end of the silver wedding festivities meant the start of Fred and Mary's 6 week summer holiday.
