The last months of Clement XIV's life were embittered by his failures and he seemed always to be in sorrow because of this. His work was hardly accomplished before Clement XIV, whose usual constitution was quite vigorous, fell into a languishing sickness, generally attributed to poison. No conclusive evidence of poisoning was ever produced. The claims that the Pope was poisoned were denied by those closest to him, and as the Annual Register for 1774 stated, he was over 70 and had been in ill health for some time.