Lewis Clifford English soldier and suspected heretic (1330–1404) Parents Roger de Clifford, 5th Baron de Clifford Robert de Clifford, 3rd Baron de Clifford Children William Clifford Siblings Margaret de Clifford Philippa de Clifford Sir William de Clifford unknown daughter de Clifford unknown daughter de Clifford Katherine de Clifford Thomas de Clifford, 6th Baron de Clifford Maud Clifford Partners Eleanor de Mowbray