A former teacher and basketball coach who was facing dozens of historical sexual assault charges has died.

Donald Greenham's lawyer, Sean May, confirmed Tuesday the 75-year-old man died at his home on Sunday.

The allegations against Greenham dated back to the 1970s and 1980s, when he was a teacher and coach with the Ottawa-Carleton District School Board.

His alleged victims were all boys, between the ages of 12 and 17 at the time.

The incidents occurred in Ottawa between 1972 and 1981, while Greenham was in "the course of his duties as a teacher and coach with the Ottawa-Carleton District School Board," police said.

May said Greenham maintained his innocence. He was set to go to trial later this year.