Who were Ferdinand and Isabella, and how did their marriage change Spain?

catholic Monarchs, also called Catholic Kings, or Catholic Majesties, Spanish Reyes Catholics, Ferdinand II of Aragon and Isabella I of Castile, whose marriage (1469) led to the unification of Spain, of which they were the first monarchs.

Explanation:

i belive the classic sword and a shield would do

from my own personal expirence food stamps has alot this makes it eaiser so we can affod bills and so we can life a better lifestyle not needing to worry about paying actual money to buy food since most people spend 100-300 dollars a month on food so this alot so we can afford other bills and other stuff we need