Henry asked for permission from his uncle Richard, who gave it promptly: however, since Richard was suspected of Conrad's murder, this raises further questions about the whole episode. Indeed, Henry, who was known to the Arabs as ""al-kond Herri"", later sought an alliance with the Hashshashin, and was invited to visit their fortress stronghold, al-Kahf. To demonstrate his authority, the grand master of the Hashshashin beckoned to two adherents, who immediately flung themselves from the ramparts to their deaths. The Hashshashin then offered to commit a murder for Henry, as an honour to their guest. Henry demurred, concluded the treaty, and departed. Patrick A. Williams has suggested Henry himself as a suspect in Conrad's murder, although it would have been a risky undertaking without his uncle's support.