Alain Delon and Romy Schneider met on the set of “Christine” (1958), felt in love and she moved with him to Paris. Schneider became engaged to Delon in 1959. They never got married though, they were always delaying it. Delon broke up with her in 1964, breaking her heart. They continued starring in films together, like La Piscine (The Swimming Pool) (1968).
Alain placed a piece of paper with the following words on her tomb: "Tu n’as jamais été aussi belle, tu vois j’ai appris quelques mots allemands pour toi: Ich liebe dich meine Liebe which means You have never been so beautful, you see that I learned some words in German for you: I love you my love.