Diego de Landa
His work, the "Historia de Yucatán", appeared at Madrid in 1688, and was reprinted in 1842 and 1867. It contains information personally gathered at a time when older sources, written and oral, that have now partly disappeared, were still accessible. Cogolludo consulted and used the writings of Bishop Diego de Landa to a considerable extent, but many of his statements must be taken with caution.