Is Guanciale from Amatrice or Rome?

In pursuit of pasta alla gricia in Testaccio, Rome

Easy Pasta all'Amatriciana (Classic Roman Recipe) - Savoring Italy

Bucatini All'Amatriciana - Food Nouveau

Authentic amatriciana recipe •

Bucatini all'Amatriciana - The Lazy Italian

Bucatini all Amatriciana Italian Pasta from Lazio and Rome with Guanciale and Tomatos Stock Photo - Alamy

guanciale di manzo – M's Adventures

Hunting for the Real Pasta all'Amatriciana - The New York Times

Guanciale, the magical Roman bacon