As an enduring symbol of the monarch, The Sovereign is an especially appropriate coin to celebrate the remarkable life of Prince Phillip. With the longest royal marriage in history and 73 years of public service, Prince Philip and Her Majesty are united in their unwavering duty to their country. While they are known for their differing temperaments, their robust partnership has outlasted most modern romances, providing The Queen with the support to become the longest reigning monarch she is today.