Former US president George W. Bush mourned Britain's Prince Philip on Friday, saying he had represented his country "with dignity." The Duke of Edinburgh. the longest serving royal consort in British history and a constant presence at Queen Elizabeth II's side for decades, died aged 99, Buckingham Palace announced. "Throughout his long and remarkable life, he devoted himself to worthy causes and to others," Bush said in a statement. "He represented the United Kingdom with dignity and brought boundless strength and support to the sovereign." Philip was last seen at a staged appearance at a military ceremony at Windsor Castle in July, days after attending the wedding ceremony of his granddaughter Princess Beatrice. "Laura and I are fortunate to have enjoyed the charm and wit of his company, and we know how much he will be missed," Bush said. cjc/dw/ft