Lateran Treaty
Negotiations for the settlement of the Roman Question began in 1926 between the government of Italy and the Holy See, and culminated in the agreements of the Lateran Pacts, signed—the Treaty says—for King Victor Emmanuel III of Italy by Benito Mussolini, Prime Minister and Head of Government, and for Pope Pius XI by Pietro Gasparri, Cardinal Secretary of State, on 11 February 1929. It was ratified on 7 June 1929. The agreements were signed in the Lateran Palace, hence the name by which they are known.
Treaty of Frankfurt (1539)
The Treaty of Frankfurt (also spelled Treaty of Frankfort), also known as the Truce of Frankfurt, was a formal agreement of peace between Charles V, Holy Roman Emperor and Protestants on 19 April 1539. The parties met at Frankfurt-on-the-Main, and the Lutherans were represented by Philip Melanchthon. The treaty stated that the emperor would not take any violent actions against the Protestants, who had formed an alliance known as the Schmalkaldic League, for fifteen months starting 1 May; during this time both parties could try and resolve the differences in their confessions. As a result of this peace, the Schmalkaldic League lost the protection of France.