Princess Alexia gives her older sister Catharina-Amalia, Princess of Orange, a loving hug (King Willem-Alexander of the Netherlands & Queen Máxima of the Netherlands), early 2000s(?).
#tbt: Little Dutch Princesses Share Sisterly Hug, date unknown

Mary-Kate and Ashley Olsen meeting Crown Princess Victoria when she visited the set of “So Little Time” at Universal Studios October 25, 2001 in Universal City, CA.
Queen Beatrix’s three sons, Princes Constantijn, Friso and Willem-Alexander, in the Italian Porto Ercole during the Summer of 1973.