Write a question about the following article: Amedeo and Claude officially separated from each other 20 July 1976. They received a civil divorce 26 April 1982, and an ecclesiastical annulment from the Roman Rota 8 January 1987. Amedeo remarried to Silvia Paternò di Spedalotto later that year. Claude remarried twice: civilly in 1982 with Arnaldo La Cagnina , and both civilly and religiously with Enrico Gandolfi . Enrico died on 27 October 2015 in Laterina.
How many years do these events span for?