, Counts of Boisclaireau, in Sarthe.]]
is a
French Department , named after the
Sarthe River .
The department was created during the
French Revolution on
March 4 1790 , pursuant to the law of
December 22 1789 , starting from a part of
Province of
Maine which divided into two departments, Sarthe and Mayenne.
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The department of Sarthe forms part of the
Region Pays-de-la-Loire . It borders on the departments of
Orne ,
Eure-et-Loir ,
Loir-et-Cher ,
Indre-et-Loire ,
Maine-et-Loire and
Mayenne .