The present dissertation ia an analysis in the history of ideas of the 12th-century Persian-Islamic thinker Abß Hamid Muhammad al-Ghazâlî's political ideas and his political reversal, ie. his abandonment of a religiously-influenced political theory in favour of a Persian-influenced political theory. This study is based upon source studies and a comparison between his manual for government and other writings in which his political ideas are expressed, along with a comparative study of his manual and other manuals of the same period. The dissertation begins with a description of the socio-political conditions of the 11th- and 12th-century Islam and provides a background to the seizing of power in the eastern region of the Islamic realm by the...