Saint-Quentin-Tassilly is an old commune of the Calvados, created in 1833 by the fusion of Saint-Quentin-of-the-Rock and Tassilly. This common was removed in 1854.

• the part Tassilly was attached to the Good-Tassilly commune of Bons to form the new commune of
• the part Saint-Quentin-of-the-Rock was attached to the commune of Soumont to form the new commune of Soumont-Saint-Quentin.