 His mother had him declared insane before he came into his inheritance and she remained in control of his fortune.Upon her death, William Pulteney, 1st Earl of Bath, controlled the estate.John Newport had no children per the official record, however this is disputed by a large number of descendants of one Samuel Newport and his two brothers, who emigrated to New Zealand in 1842 and were purportedly the great-grandsons of John Newport.