Question

New Spain, new Grenada, Peru, and the rio de la plata were formed by Spain as

Answer 1

Viceroyalties
 governed by a viceroy refers to  institution and territory in the American new world that was colonized by Spain in its golden age.

 This was a social, political  and territorial institution formed by Spain in the 15th centuries for administering its overseas colonies. a viceroy was appointed directly by the Spanish monarch. Spain acted as the central exchange headquarter for trade with the viceroyalties.
<span />

Answer 2

Viceroyalties, for Apex U.S History to the Civil War.