James Gandolfini left $50,000 in his will to his friend's child with autism.

The late 'Sopranos' star - who died of a heart attack in Italy last month - made the generous donation to the son of his former college roommate Doug Katz, who he often helped out during his

lifetime.

Mr. Katz told the New York Post: ''He's my son's guardian angel.

''He always said, 'How can we help? How can we make it better?' And none of it was lip service. You could never meet a nicer guy in the world.''

Meanwhile, James, 51, left the bulk of his $70million estate to his children, 13-year-old Michael from his first marriage to Marcy Wudarski and eight-month-old Liliana, his daughter with wife Deborah Lin.

In his will dated December 19 and filed on Tuesday (02.07.13) in Manhattan Surrogate's Court ,it was revealed James arranged for Micheal to inherit through a trust which will be set aside for when he turns 21.

Part of his inheritance includes the star's Italian property which Michael will split with his half-sister when she turns 25.

In James' 17 page will he urged his children to keep the estate in the family for as long as possible.

He wrote: ''It is my hope and desire that they will continue to own said property and keep it in our family

for as long as possible.''

Michael will also get his father's clothing and first refusal on buying James' Greenwich Street property in the West Village, New York City.

James also left millions to Deborah, $500,000 for each of his nieces and $200,000 each to his personal assistant and secretary.

In addition, James owned a $1.1 million home in New Jersey, and a $7 million penthouse at the Fairchild Building in New York City.