Namesakes
Other Royalty:
2 queen consorts, 1 princess/queen consort
Amalie of Oldenburg (middle name Frideriki) 1836-1862 Greece 
Sofía of Spain (middle name Frideriki) 1938-1962; 1975-2014 Denmark; Greece; Spain
Friederike of Hanover (a.k.a. Frideriki) 1947-1964 Greece