We need the article see it first "The Feudal Monarchs and the Church"
I am not completely sure but would it be answer number 4? Sorry if I am wrong, it just makes more since to me.
The Adams–Onís Treaty of 1819, also known as the Transcontinental Treaty<span>, the Florida Purchase Treaty, or the Florida Treaty, was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain.
Welcome XD</span>