Some good nicknames are: val, vali, valen
Valentine's Day is 'la Saint Valentin' or 'le jour de la Saint-Valentin' in French.
Valentin Vaala's birth name is Ivanov, Valentin.
Rey Valentin's birth name is Reynaldo Valentin.
Valentin Schweiger's birth name is Valentin Florian Schweiger.
Valentin Smirnitskiy's birth name is Valentin Georgievitch Smirnitskiy.
Valentin Rivillon's birth name is Benot-Valentin Rivillon.
Valentin Sveshnikov's birth name is Valentin Vasilievitch Sveshnikov.
Valentin Zheleznyakov's birth name is Zheleznyakov, Valentin Nikolayevich.
Valentin Zubkov's birth name is Zubkov, Valentin Ivanovich.
Valentin Turkin's birth name is Turkin, Valentin Konstantinovich.
John Valentin's birth name is John William Valentin.
Karl Valentin's birth name is Fey, Valentin Ludwig.