is a French
Department in the southwest of
France .
The department was created on
November 4 ,
1808 during the
First French Empire by a decision of
Napoleon I . It was formed out of territories belonging to neighboring areas. More than half of the territory was taken from the
Lot (including
Montauban and
Moissac ), over one-third was taken from
Haute-Garonne (including
Castelsarrasin ), and the rest from the department of
Lot-et-Garonne ,
Gers , and
Aveyron .
The department of Tarn-et-Garonne constitutes part of the
Midi-Pyrénées Region . It borders the department of
Lot ,
Aveyron ,
Tarn ,
Haute-Garonne ,
Gers , and
Lot-et-Garonne .