A previously unknown portrait by the Spanish artist Diego Rodriguez de Silva y Velázquez (1599-1660) will be the highlight of the Old Master Paintings auction on Wednesday 7th December 2011 at Bonhams, 101 New Bond Street, London. The work is a portrait of a gentleman, bust-length, in a black tunic and white golilla collar and measures 47 x 39cm. It is estimated to sell for £2,000,000-3,000,000. Andrew McKenzie, Director of Old Master Paintings at Bonhams, comments, "This is an ...