How did Patrick hillery die?

Patrick Hillery, the former President of Ireland, passed away on April 12, 2008, due to complications from a long illness. He had been experiencing health issues in the years leading up to his death. Hillery served as Ireland's President from 1976 to 1990 and was also a prominent figure in Irish politics as a member of the Fianna Fáil party. His contributions to Irish public life were widely recognized and respected.