 Though they would have lost their right to elect the kings, the secular princes themselves wished to make their Imperial fiefs hereditary and to be inheritable by the female line as well, and Henry agreed to consider these demands.The emperor also bought the support of ecclesiastical princes by announcing that he would be willing to give up the "Jus Spolii" and the right to receive recurring earnings from church lands during a period of "sede vacante".At the Diet of Würzburg, held in March/April 1196, he managed to convince the majority of the princes to vote for his proposal.