 The next phase of the building was built by Yax K'uk' Mo's son K'inich Popol Hol and is nicknamed Motmot.This phase of the structure was more elaborate and was decorated with stucco.Set under the building was the Motmot capstone, covering a tomb with the unusual Teotihuacan-style burial of a woman, accompanied by a wide variety of offerings that included animal bones, mercury, jade and quartz, along with three severed human heads, all of which were male.