 The Xukpi Stone is a dedicatory monument from one of the earlier phases of the 10L-16 temple constructed to honor K'inich Yax K'uk' Mo'.It bears the date of AD 437 and the names both K'inich Yax K'uk' Mo' and K'inich Popol Hol, together with a possible mention of the Teotihuacan general Siyaj K'ak'.The monument has not been completely deciphered and its style and phrasing are unusual.