The unprecedented thing about Tiyi. … is not where she came from but what she became. No previous queen ever figured so prominently in her husband’s lifetime. Tiyi regularly appeared besides Amenhotep III in statuary, tomb and temple reliefs, and stelae while her name is paired with his on numerous small objects, such as vessels and jewelry, not to mention the large commemorative scarabs, where her name regularly follows his in the dateline. New elements in her portraiture, such as the addition of cows’ horns and sun disks—attributes of the goddess Hathor—to her headdress, and her representation in the form of a sphinx—an image formerly reserved for the king—emphasize her role as the king’s divine, as well as earthly partner. Amenhotep III built a temple to her in Sedeinga in northern Sudan, where she was worshiped as a form of Hathor … The temple at Sedeinga was the pendant to Amenhotep III’s own, larger temple at Soleb, fifteen kilometres to the south (an arrangement followed a century later by Ramses II at Abu Simbel, where there are likewise two temples, the larger southern temple dedicated to the king, and the smaller, northern temple dedicated to the queen, Nefertiry, as Hathor).
Amenhotep III: Perspectives on His Reign - David O'Connor and Eric H. Cline