He is probably to be identified with the homonymous legate of Agatho at the Sixth Ecumenical Council, held at Constantinople in 680 (Mansi, XI, 209). He was twice a candidate for the Apostolic See. The first time was at the death of John V (2 August 686), sponsored by the military party in opposition to the archpriest Peter, candidate of the clergy. After more than two months of violent strife, "sacerdotes et clerus," to which the "exercitus" then assented, chose a third candidate, the venerable priest Conon (v.), who was consecrated on 21 October following. The two contenders did not oppose this. The second time (meanwhile T. had become archpriest) at the death of the aforementioned Conon (21 September 687), in opposition to the archdeacon Paschal. Both elected candidates installed themselves at the Lateran, but even this time the most influential representatives of the two parties (the military class was not as united as in the previous election) agreed to choose a third candidate, the priest Sergius (v. SERGIO I, PAPA). As soon as he was able to enter the patriarchium, forcing its doors, T. "ilico quievit ac se humiliavit," attests the Liber Pontificalis, while Paschal (v.) rebelled and died in his obstinacy.
A. Pietro Frutaz