Constantin was born in Poggibonsi (Siena) in 1974.
1993 - Degree in Fine Arts from the Istituto d’Arte of Siena.
During his degree course at the Accademia di Belle Arti of Firenze, Constantin, in 1996 took an Erasmus scholarship at the Facoltà di Belle Arti of Siville, Spain, where he attend the third year.
1999 - Degree in Fine Arts from the Accademia di Belle Arti of Firenze.
In 2000, he attended a specialization course in Granada, Spain, through the scholarship “Progetto Leonardo”.
Since 2008 he teaches at the Liceo Artistico in Morbegno.