Complex sentence: A document was found in the ancient Hittite capital of Hattusa which dates to the Amarna period; the so called "Deeds" of Suppiluliuma I, the king receives a letter from the Egyptian queen, while being in siege on Karkemish.
Split into simpler sentences: A document was found in the ancient Hittite capital of Hattusa which dates to the Amarna period. It's the so called "Deeds" of Suppiluliuma I, the king receives a letter from the Egyptian queen, while being in siege on Karkemish.