Interdict is a censure similar to excommunication. Luther's ecclesiastical superiors had him tried for heresy, which culminated in his excommunication in 1521. As such it is a grave sin and involves "ipso facto" excommunication. These are the only effects for those who have incurred a "latae sententiae" excommunication. Henry IV's rejection of the decree led to his excommunication and a ducal revolt. He forbade anyone to teach them under penalty of excommunication. Disfellowshipping is used for serious sins that do not rise to the level of excommunication. Intentional host desecration incurs the penalty of excommunication . Richard died during the siege in 1078, after the deathbed lifting of his excommunication. On his deathbed, Sheil instructed Horan to lift the excommunication on MacKillop. The word "excommunication" means putting a specific individual or group out of communion. Those under excommunication were to be shunned. His public preaching contradicting church teaching was also referenced in the letter of excommunication. Calvin protested that the council did not have the legal authority to overturn Berthelier's excommunication. In December 1466, he pronounced the ban of excommunication and sentence of deposition against George.