Complex sentence: Records in Iran state that he had in his royal court a Muslim scholar known as Sheikh Ahmad Qomi, and that he was the son-in-law of a Chinese-Siamese-Muslim king named Nayuan (Bee Father).
Split into simpler sentences: Records in Iran state that he has in his royal court a Muslim scholar known as Sheikh Ahmad Qomi. He is the son-in-law of Chinese Siamese Muslim King descendent by the name of Nayuan (Bee Father).