What religious roles did the Hittite king and queen hold in the cult of the sun goddess of Arinna?

In the context of Hittite state religion, the king and queen held the formal roles of high priest and high priestess, respectively, in the cult of the sun goddess of Arinna.1

As the patroness of the Hittite state and monarchy, the goddess—also known by the epithet Arinnitti—was central to the royal ideology. The king and queen served as the chief officiants in the numerous seasonal festivals dedicated to the national deities, which typically involved elaborate rituals, processions, and the performance of libations and cultic meals. Their participation was essential to the proper conduct of the state cult, ensuring that religious obligations were met to maintain the favor of the gods, who were believed to protect the kingdom and its royal decrees.213