Sovereignty is the concept of a government that can control itself and its people, is not subordinated to another government, and is recognized as having these features. Sovereignty requires that a government be independent, i.e., free from control by other governments, but it must have the further power to control itself. There are several different kinds of sovereignty. Titular sovereignty refers to having the name of the highest office without the actual power and authority to make governing decisions. Internal sovereignty refers to the authority to make the laws and to carry on administrative tasks in a way that the population recognizes. External sovereignty refers to foreign powers recognizing a government's claim to independence and therefore self-government. Legal sovereignty refers to the recognized authority to control the laws; political sovereignty refers to the often vaguely-defined right to influence lawmakers and government officials. De jure sovereignty refers to the rightful claim to having the authority to rule, i.e., to possess recognized legitimacy for governing. De facto sovereignty refers to whatever power in fact makes the highest decisions, such as trading and controlling markets. Finally, popular sovereignty refers to those government arrangements in which the people are the highest authority in a territory.