Also used in Sweden. Some known Swedish women with this name are actress Margaretha Krook (1925-2001) and princess Margaretha (b. 1934, sister of king Carl XVI Gustaf).
Princess Margaretha of Liechtenstein is the fourth child and second daughter of Grand Duke Jean of Luxembourg and Princess Joséphine Charlotte of Belgium. As the sister of Grand Duke Henri of Luxembourg and the sister-in-law of Prince Hans-Adam II of Liechtenstein, she is a princess of two current realms and a member of the Luxembourg and Liechtenstein reigning dynasties. The Princess holds similar precedence in both monarchies, as sister and sister-in-law of the Sovereign.