D. Castiglione
Cesare Borgia was the Son of the Pope and Cosimo de Medici's family ruled Florence, so neither have anything to do with the royal family of Mantua. Machiavelli wrote the Prince, so that is not the correct answer either. Castiglione was part of the Royal family of Mantua and did write the Book of the Courtier. So D is the correct answer.
The relationship was not good because they disagreed about where the Texas- Mexico border.
The war—in which U.S. forces were consistently victorious—resulted in the United States' acquisition of more than 500,000 square miles (1,300,000 square km) of Mexican territory extending westward from the Rio Grande to the Pacific Ocean
The body of the Declaration of Independence is made up of two sections.
The first section of the body of the Declaration gives evidence of the "long train of abuses and usurpations" heaped upon the colonists by King George III. The second section of the body states that the colonists had appealed in vain to their "British brethren" for a redress of their grievances. Having stated the conditions that made independence necessary and having shown that those conditions existed in British North America, the Declaration concludes that "these United Colonies are, and of Right ought to be Free and Independent States; that they are Absolved from all Allegiance to the British Crown, and that all political connection between them and the State of Great Britain, is and ought to be totally dissolved."
Spain joined Venice and other Italian states in defending the Strait of Lepanto because the Ottoman empire posed a threat to European control of the region. As a result, the interests of the Spaniards and the Italians were aligned as they all considered the region critical