Tony York, the son of San Francisco 49ers owners Denise DeBartolo York and John York, has died at age 35.

The team made the announcement Saturday that York passed away on Friday, Demeber 7.

A cause has not been given.

The York family gave the following statement: 

With deep sadness, we mourn the passing of our beloved son and brother, Tony. Although our hearts are quite heavy at this time, we have so many special memories shared with him to carry us forward. Tony will forever be remembered as a bright, spirited entrepreneur with an unmatched passion to serve others who could brighten a room with his personality and sense of humor. Tony, we love you.

York was a Cardinal Mooney graduate.