Caren Hortensia (カレン・オルテンシア, Karen Orutenshia?, "Karen Ortensia") is the main heroine of Fate/hollow ataraxia and the Master of Lancer and Gilgamesh. She is a member of the Church and works as a priestess. She replaces her father, Kirei Kotomine, as the priest of the Fuyuki Church.