Paperback. Pub Date: 2008 Pages: 544 Publisher: Penguin Wentworth is in Yorkshire and was surrounded by 70 Collieries employing tens of thousands of men It is the finest and largest Georgian the house in itain andbelonged to the Fitzwilliam family. It is England's forgotten palace which belonged to itain's richest aristocrats. Black Diamonds tells the story of its demise: family feuds. forbidden love. class war. and a tragic and violent death played their part. But coal. one of the most emotive issues in twentieth century itish politics. lies at its heart. This is the extraordinary story of how the faic of English society shifted beyond recognition in fifty turbulent years in the twentieth century.