 Though he had designated his nephew Godfrey of Bouillon, son of his sister Ida his successor, his estates were seized by Emperor Henry IV in favour of his son Conrad.Not until 1088, Godfrey of Bouillon was appointed Lower Lorraine regent.The County of Verdun was given to Godfrey by Emperor Otto I between 944 and 951, and was held by several dynasty members over the following four generations.