Nizam al-Mulk
Abu Ali Hasan ibn Ali Tusi (April 10, 1018 – October 14, 1092), better known by his honorific title of
Nizam ul-Mulk (), was a
Persian scholar,
jurist,
political philosopher and
vizier of the
Seljuk Empire. Rising from a low position within the empire, he became the ''de facto'' ruler of the empire for 20 years after the assassination of Sultan
Alp Arslan in 1072, serving as the archetypal "good vizier". Viewed by many historians as "the most important statesman in
Islamic history", the policies implemented by Nizam ul-Mulk remained the basic foundation for administrative state structures in the Muslim world up until the 20th century.
One of his most important legacies was the founding of a system of
madrasas in cities across the Seljuk Empire which were called the
''Nizamiyyas'' after him. He also wrote the ''
Siyasatnama'' (''Book of Government''), a political treatise that uses historical examples to discuss justice, effective rule, and the role of government in Islamic society.
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