Simplify the following text for a Grade 8 native English-speaking person.
Original: Montfort , PyrÃ nÃ es-Atlantiques is a commune of the PyrÃ nÃ es-Atlantiques dÃ partement in the southwestern part of France .
Simplified: Momy is a commune in the PyrÃ nÃ es-Atlantiques department in south-western France .