Tarn-et-Garonne is not one of the original 83 departments created during the
French Revolution on 4 March 1790. It was created on 4 November 1808 during the
First French Empire by
It was formed out of territories belonging to neighboring areas. More than half of the territory was taken from the
Moissac), over one-third was taken from
Castelsarrasin), and the rest from the departments of
The new department had three arrondissements: Montauban, Castelsarrasin and Moissac. The
Montauban. On 10 September 1926, the arrondissement of Moissac was eliminated.