Princess Beatrice’s ex-boyfriend Paolo Liuzzo’s cause of death has been revealed a couple of months after he overdosed in a Miami hotel room. According to the autopsy report, which was obtained by the Daily Mail, Liuzzo tested positive for ketamine, cocaine, fentanyl and a new depressant called bromazolam. Liuzzo, who was 41 at the time of his death, succumbed to “acute combined drug toxicity,” the autopsy stated. “Police found Liuzzo after being called to a room at the citizenM Miami Worldcenter hotel at 3:22 p.m. on February 7,” Officer Michael Vega, who works for the Miami Police Department…