Corbinian founded a religious community in the 7th century
Up into the 13th century, Saint-Germain was a dependence of the châtellenie of Montlhéry
In the 16th century, Saint-Germain was an estate of the lords of Granville
In the 18th century, it was an estate of the lords of Noailles
In 1720, the commune takes its current name following the acquisition of the commune of Châtres by Louis de Severac, Marquis d' Arpajon-sur-Cère (father of Anne d'Arpajon, comtesse de Noailles). It was previously called Saint-Germain-lès-Châtres).
Population
Its inhabitants are called Germinois.
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