With a change of rule comes a new name. What was Mexico called under Spanish rule?
Answer New Spain
Once Spain conquered Tenochtitlán, they put their stamp of approval on it. Deeming the land "the Viceroyalty of New Spain", this was but one of four viceroyalties Spain established in the New World. This viceroyalty included all land north of the Isthmus of Panama all the way up to what is now the central and southwestern United States.
Last updated 5 years ago · 52.6K views · SOURCE