Jenifer Roberts is the successful author of 'The Beauty of Her Age', 'The Madness of Queen Maria', 'Fitz: The Colonial Adventures of James Edward FitzGerald' and 'Glass: The Strange History of the Lyne Stephens Fortune'. She excels at in-depth historical biographies and has an extraordinary talent for bringing her subjects to life. 'Entertaining the Braganzas' is her first book for Pen and Sword.