Son of Bonus.
Sent by PopeSaintGregory I as papal nuncio to Constantinople in 593, and returned to Rome in 597.
Chosen 65th pope in 604.
The pontificate of Sabinanus was disturbed by a threatened invasion of the Lombards, and by a famine; he sold Vatican's stores of grain instead of giving it away, which led to some angry writings about him by contemporaries.
Some sources say he started the tradition of ringing bells at the canonical hours, and during the celebration of the Eucharist.