Here is a recent photo of our elegant Grand Old Duke entering his 90th year and still going about his duties as vigorously as ever. I read somewhere - perhaps quoting from the duke himself - that Prince Philip, now the longest serving royal consort in British history, has the kind of vitality and freshness of spirit that refuses to diminish with time and will never show signs of depletion - one day he will just drop, and that will be that. Of course here's hoping that is a long way away. It is gratifying to see His Royal Highness in very fine form indeed.
The Duke of Edinburgh during the Garden Party at Buckingham Palace, 22 July 2010. © Press Association