Name of Mexico of the country is the "United Mexican States" (), since it is a federation of thirty-two states. The official name was first used in the Constitution of 1824, and was retained in the constitutions of 1857 and 1917. Informally, "Mexico" is used along with "Mexican Republic" ("República Mexicana"). On 22 November 2012, outgoing Mexican President Felipe Calderón proposed changing the official name of the country to "México". Anahuac (meaning land surrounded by water) was the name in Nahuatl given to what is now Mexico during Pre-Hispanic times. When the Spanish conquistadors besieged México-Tenochtitlan in 1521, it was almost completely destroyed.
Leopold (given name) rulers took the name Leopold, as did nearly a dozen from other European realms. Other notable people bearing this name include: Leopold (given name) Leopold is the modern form of the Germanic name "Luitbald", composed of two stems, common to Germanic names. The first part is related to Old High German ""liut"" meaning "people", the second part is of Germanic origin and means "brave", compare ""bold"". The name has been observed since the 5th century, including by the Frank Gregory of Tours, and the name gradually spread across Western Europe and during the 16th century it became popular in the