What now constitutes the head of the municipality of Mérida, was a pre-Hispanic Itza Mayan town called T-hó (In the Yucatec Maya Language: "five hills"), which was founded around the 12th century AD [REF].
Overlapping jurisdictions occurred for the area at various times with the administration being under the Audiencia de Guatemala in 1549, but also the Viceroyalty of New Spain from 1549-1552.