His dad George di Caprio and his mother Irmelin Idenbirken got to know each other in college. Irmelin moved from Germany (Oer-Erkenschwick) to the USA as a young girl.

Leonardo was born in a hospital in Los Angeles. His parents had him circumcised at an early age. When Leo was one year old his parents get divorced. He grows up with his mother. Both as a little child as well as today Leonardo visits the Ruhr Area with his mother to visit his grandparents. He loves walking in the Haard (a forest region) and Düsseldorf. Leo speaks German.