Complex sentence: According to mythological native accounts, the Mexica sacrificed her by flaying the skin from her bones and having a priest wear her skin, hi was done on the command of their god Huitzilopochtli.
Split into simpler sentences: According to mythological native accounts, the Mexica sacrificed her by flaying the skin from her bones and having a priest wear the skin. This was done on the command of their god Huitzilopochtli.