Simplify the following text for a Grade 8 native English-speaking person.
Original: Saint - Ã tienne-la-Thillaye is a commune in the Calvados department in the Basse-Normandie region in northwestern France .
Simplified: Saint - Ã tienne-la-Thillaye is a commune . It is found in the Basse-Normandie region in the Calvados department in the northwest of France .