Complex sentence: At the age of 6, his mother married a con-artist which costed the family their home and caused Santino and his sister to enrol into 9 different schools over a period of 4 years until his mother decided to end the marriage.
Split into simpler sentences: At the age of 6, his mother married a con-artist which resulted in losing their home. Since then, Santino was on the move and attended 9 different schools over a period of 4 years until his mother decided to end the marriage.