La Trinité is a commune in the Alpes-Maritimes department, southeastern France. Formerly a small town located on Kingdom of Piedmont-Sard…La Trinité is a commune in the Alpes-Maritimes department, southeastern France. Formerly a small town located on Kingdom of Piedmont-Sardinia main road from Nice to capital Turin, it is located on the left bank of the Paillon river. It has been French since 1860.