In the realm of a shah (or a more lofty derived ruler style), a prince or princess of the royal blood was logically called "shahzada" as the term is derived from shah using the Persian patronymic suffix "-zādeh" or "-zāda", "born from" or "descendant of". However the precise full styles can differ in the court traditions of each shah's kingdom. This title was given to the princes of the Ottoman Empire ("Şehzade", Ottoman Turkish: شهزاده) and was used by the princes of Islamic India ("Shahzāda", Urdu: شہزاده, ) such as in the Mughal Empire. The Mughals and the Sultans of Delhi were not of Indian origin but of Mongol-Turkic origin and were heavily influenced by Persian culture, a continuation of traditions and habits ever since Persian language was first introduced into the region by Persianised Turkic and Afghan dynasties centuries earlier. Thus, in Oudh, only sons of the sovereign "shah bahadur" (see above) were by birth-right styled "Shahzada [personal title] Mirza [personal name] Bahadur", though this style could also be extended to individual grandsons and even further relatives. Other male descendants of the sovereign in the male line were merely styled "Mirza [personal name]" or "[personal name] Mirza". This could even apply to non-Muslim dynasties. For example, the younger sons of the ruling Sikh maharaja of Punjab were styled "Shahzada [personal name] Singh Bahadur". The corruption "shahajada", "Shah's son", taken from the Mughal title Shahzada, is the usual princely title borne by the grandsons and male descendants of a Nepalese sovereign, in the male line of the Shah dynasty. For the heir to a "Persian-style" shah's royal throne, more specific titles were used, containing the key element "Vali Ahad", usually in addition to "shahzada", where his junior siblings enjoyed this style.