Toniná 's history come into focus in the Late Classic , when its historical record is more fully represented by hieroglyphic texts . In 633 K 'inich Hix Chapat is recorded as installing two subordinate lords but little else is known of his reign , although he was probably enthroned in 595 . The last mention of K 'inich Hix Chapat is in a monument dated to 665 that appear to be a memorial stone .