Sir David Rowat Barclay (27 October 1934 – 10 January 2021) and Sir Frederick Hugh Barclay (born 27 October 1934), commonly referred to as the "Barclay Brothers" or "Barclay Twins", were British billionaire brothers, of whom Frederick Barclay is now the sole survivor. They were identical twins and, until David's death in 2021, had joint business interests primarily in media, retail and property. File:Mayfair House London.jpg|thumb|The Barclay brothers at one time had ownership in the world-famous Connaught Hotel situated in London's Mayfair (seen here infront of Tadao Ando's fountain 'Silence' and besides Mayfair House) The Sunday Times Rich List of 2020 estimated their wealth at £7 billion. They earned a reputation for avoiding publicity and have often been described as reclusive. Wikipedia