Boniface III was a Roman-born bishop who served as pope for a brief period in 607. Before his election, he served as a papal apocrisiarius in Constantinople, where he gained a reputation for his diplomatic skills. During his time at the imperial court, he successfully mediated a dispute between bishops by leveraging his relationship with Emperor Phocas. His leadership was characterized by efforts to protect the integrity of papal elections and to assert the primacy of the Roman See over other major Christian centers.