Sadok Bey , name francized of Muhammad Al-Sadiq Bey (rear RTL محمدالصادقبنحسين), born the February 7th 1813 and deceased the October 29th 1882 with the Palate of the Bardo, is Bey de Tunis of 1859 to its death.

Invested as crown prince the June 10th 1855, it succeeds his/her older brother, Mohammed Bey, the September 20th 1859. Named major general of the Othoman imperial army on June 10th, 1855, it is promoted with the rank of marshal the December 10th 1859.

The April 23rd 1861, it promulgates the first true constitution Arab world: it separates the executive powers, legal and legislature, limit the capacities of the bey and creates new courts of justice and a supreme council (collaborating at the same time with an assembly and a supreme court). This constitution also ensures Europeans and the Juifs the equal rights with the Moslem , in particular the right to have real goods. A new situation legal which encourages Europeans to be established in Tunisia. Thus sees one settling new tradesmen French, opening to religious schools not-Moslem women and the service of telegraphy to be conceded with a French mission in 1859.

The April 26th, Sadok Bey modifies the order of succession with the throne: it is henceforth the oldest prince of the beylicale family which goes up on the throne to dead of the sovereign and either the elder one of her sons.

To replace the French fondouk, the Tunisian government makes build new a consulate on future the which occurred of the Navy inaugurated by the sovereign the January 12th 1862. The bey entrusts to the Engineer Colin of Marseilles the general repair of the Aqueduc romano-hafside of Zaghouan to ensure the supply Eau of the Capitale. Towards 1865, one starts to demolish the ramparts which surround the médina and of which some then threaten to crumble. It is about this time that disappear the doors Bab Carthagena, Bab Souika, Bab Bnet and Bab El Jazira. The guns of Bronze of the ramparts of Tunis and Goulette are sold in 1872 with the profit of the treasure. Europeans are established preferably in the neighborhoods of Bab El Bhar and with the outlet of the streets of the Kasbah, the Refrigerators, the Consulate, the Church, the ramparts and in edge of the avenue of the Navy planted of ficus about 1865. In trimmings, construction is obstructed by the presence of the European cemeteries (in particular opposite new the consulate of France), by the truck farms created along the Marais of the Lac of Tunis which advance until current the Avenue of Carthage.

However, the intrigues of some of these ministers, in particular Mustapha Khaznadar and Mustapha Ben Ismaïl, the constant pressure of the European consuls and the bankruptcy of the State, due to great work which is accompanied by heavier and more taxes obliging it to claim appropriations than it cannot refund, open the doors with the foreign occupation in spite of the efforts of the top dog Kheireddine Pasha. France thus takes foot in Tunisia in 1869 by the means of a commission anglo-italo-Frenchwoman intended to reabsorb the Foreign debt country. It will be constrained to sign, the May 12th 1881, the Traité of Bardo which founds the French Protectorat in Tunisia.

It is buried with the Mausolée Tourbet El Bey located in the Médina of Tunis.