The brothers were joined by Diana's siblings to mark the occasion of her 60th birthday.

Prince William and Prince Harry have reunited in Kensington Gardens for the unveiling of a statue of their mother, Princess Diana. Today would have been her 60th birthday. In a joint statement, the brothers said that they hope the statute will be seen as a symbol of their mother's "life and her legacy". The full tribute reads: "Today, on what would have been our mother's 60th birthday, we remember her love, strength and character – qualities that made her a force for good around the world, changing countless lives for the better. "Every day, we wish she were still with us, and our hope is that this statue will be seen forever as a symbol of her life and her legacy. "Thank you to Ian Rank-Broadley, Pip Morrison and their teams for their outstanding work, to the friends and donors who helped make this happen, and to all those around the world who keep our mother’s memory alive." The statue depicts Diana, with a child on either side of her. In front of it, a paving stone is engraved with an extract from The Measure of a Man, a poem by Albert Schweitzer. It reads: "These are the units to measure the worth "Of this woman as a woman regardless of birth. "Not what was her station? "But had she a heart? "How did she play her God-given part?" Prince William shared the statement on his Instagram, as well as a picture of the two brothers looking at the statue. The event marked the first time the brothers saw each other since the funeral of their grandfather Prince Philip. They were joined by their mother's siblings - Lady Sarah McCorquodale, Lady Jane Fellowes and Earl Spencer. Outside of Kensington Palace, fans paid tribute to Princess Diana with banners, cards and flowers.