Former King of Greece Constantine II dies at 82

King Constantine II and Queen Anne-Marie arrive at Fredensborg Castle in Denmark to a dinner given to celebrate the 75th birthday of Queen Margrthe II of Denmark on April 16th, 2015. Ritzau Scanpix 2023/Thomas Lekfeldt via REUTERS

ATHENS (Reuters) - Greece's former King Constantine II, whose nine-year reign coincided with one of the most turbulent periods in the country's political history, died on Tuesday aged 82, state website ERT news reported.

Constantine II, the only son of King Paul and Queen Frederica of Greece, ascended to the throne in 1964 after his father died but his reign was marred by political instability which culminated in a military coup on April 21, 1967.