Denver Broncos -- Owner's Son Found Guilty ... In Bizarre Domestic Violence Case

The son of Denver Broncos owner Pat Bowlen has just been found guilty of harassment in a bizarre case in which he claimed to be "the blood of the city" of Denver.

As we previously reported, John Bowlen Jr. -- who worked for the team -- was arrested back in June '15 after allegedly shoving his girlfriend in his Denver-area apartment during a domestic dispute.

John's GF called 911 -- but the call was cut short (the last thing the operator heard was a woman screaming) ... and when the operator called back, Bowlen went on a bizarre rant and referred to himself as the "blood of the city."

John was charged with harassment and telephone obstruction -- but denied the allegations and took the case to a jury trial.

But today, court officials tell us, "domestic violence was proven" -- and Bowlen was found guilty on one court of harassment.

He was sentenced to 2 years probation and 24 hours of community service. Bowlen was also ordered to domestic violence, mental health and alcohol evaluations and treatment.

If he violates the terms of his probation, the judge said jail will be imposed.