This was February 2012's winning idea in the Fellowship club. It was released in September 2012.
Denethor was the Steward of Minas Tirith, the capital city of Gondor. He tried to use a palantir to spy on Sauron's armies but his visions were manipulated by Sauron so they caused despair and disillusionment.
After the poorly judged decision to defend Osgiliath, resulting with the almost fatal injury of his younger son Faramir, and the inevitable siege of Minas Tirith by the monstrous forces of Sauron, Denethor lost all hope and committed suicide.
He ordered his men to burn him alive on a pyre prepared for himself and Faramir. Faramir was saved by the timely intervention of Peregrin Took, with help from Gandalf and the guard Beregond.