About the Tranchemontagne surname
The modern spelling of Tranchemontagne alone is not enough to establish a certain origin. The canonical form used here is “Tranchemontagne”; phonetic or spelling differences found in indexes should be checked against the other information in the record. Migration, language shifts, and record transcription can alter a surname over successive generations.
Pronunciation:
Tranch-mon-tagn/tʁɑ̃ʃmɔ̃taɲ/