Question: What is the name of Hassan Khomeini's grandfather
Sentence (from "National Anthem of the Islamic Republic of Iran"): The "National Anthem of the Islamic Republic of Iran" (Persian: سرود ملی جمهوری اسلامی ایران‎ ‎ ) was composed by Hassan Riyahi, with words written by Aiadan Maroni.
Relevant evidence: No