Tuesday, July 14, 2009 This article mentions the Wikimedia Foundation, one of its projects, or people related to it. Wikinews is a project of the Wikimedia Foundation. The English National Portrait Gallery (NPG) in London has threatened on Friday to sue a U.S. citizen, Derrick Coetzee. The legal letter followed claims that he had breached the Gallery’s copyright in several thousand photographs of works of art uploaded to the Wikimedia Commons, a free online media repository. In a letter from their solicitors sent to Coetzee via electronic mail, the NPG asserted that it holds copyright in the photographs under U.K. law, and demanded that Coetzee provide various undertakings and remove…