Royal twins.
D000022:Abortion, Spontaneous / Q000266:history; D005197:Famous Persons; D005260:Female; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049672:History, 19th Century; D006801:Humans; D011247:Pregnancy; D014427:Twins; D006113:United Kingdom