The expression was brought to modern prominence by Queen Elizabeth II in a speech to Guildhall on 24 November 1992, marking the 40th anniversary of her accession, in which she described the year as an annus horribilis.
1992 is not a year on which I shall look back with undiluted pleasure. In the words of one of my more sympathetic correspondents, it has turned out to be an annus horribilis.