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Christophe - singer - was born on 1945-10-13.
Christophe Hellboy's birth name is Christophe Lagarde.
Christophe Beck's birth name is Jean-Christophe Beck.
Christophe Bourseiller's birth name is Christophe Gintzburger-Kinsbourg.
That's short for "anniversaire de Christophe" (Christophe's birthday)