Kingship is one of the oldest institutions in history which has survived in spite of all vicissitudes of politics: civil wars, assassinations, deposition from throne, and overthrowing and beheading by adversaries. It emerged again and again from the debris of revolution and ashes of civil wars. Today, some' kings are surviving after surrendering their powers and some of them are enjoying their old status because of absence of any challenge. Historically, the institution passed through different stages and structured and re-structured itself according to its interest and fulfilling the demands of time.