He remained a member of the House of Lords until 1999, when hereditary peers lost their automatic right to sit.

O'Hagan had a notable political career, serving as a Member of the European Parliament for Devon from 1973 to 1975 and again from 1979 to 1994.

O'Hagan's life was marked by three marriages, with his last wife being Elizabeth Lesley Eve Smith at the time of his death.

Born in 1945, O'Hagan was educated at Eton College and New College, Oxford, and became the 4th Baron O'Hagan at the age of 16 after the death of his grandfather.

King Charles III and the royal family expressed their heartbreak over O'Hagan's passing, reflecting on the deep connections he had with them.

Lord Charles O'Hagan, a beloved godson of the late Queen Elizabeth II, passed away at the age of 79 on March 23, 2025, due to a subdural hematoma at North Devon Hospital.

O'Hagan had a long-standing relationship with the royal family, having been appointed as one of Queen Elizabeth's godsons while she was still a princess.

He was one of about 30 godchildren of the Queen, who had notable figures such as her nephew David Armstrong-Jones among her godchildren.

His death was officially attributed to a subdural hematoma, a condition caused by burst blood vessels following a head injury, although the specific circumstances surrounding the injury remain unclear.

An inquest revealed that O'Hagan had a history of falls and confusion prior to his death.

O'Hagan served as a Page of Honour to Queen Elizabeth II from 1959 to 1962, a role he took on after her coronation in 1953.

He famously carried the Queen's train during the Order of the Garter ceremony at St George's Chapel in Windsor in June 1960.