During the first questioning of Maximos 10 (Maximus the Confessor) in the palace at Constantinople in 652/653, Troilos 3 accused him of mocking the assembly; Epiphanios 50 replied that if the charges against Maximos were false, he was right to mock the assembly: Relatio Motionis II, 113AB. Later the patrikios Troilos 3 (Τρώïλος ὁ πατρίκιος) and Sergios 113 visited Maximos 10 in his prison; they questioned him about his debates with Pyrrhos 1 in Africa and Rome and asked why he was refusing to communicate with the patriarch of Constantinople; they told him of the arrival in Constantinople of apokrisiarioi from Rome who were about to enter into communion with the patriarch; they discussed with him the subject of Wills and Energies, and asked how he could accuse the patriarchs of Constantinople of not agreeing with the Ecumenical Councils; Troilos 3 noted that the Typos was anathematised in the West and asked if it was right that the emperor should be so insulted; after the interrogation Sergios 113 and Troilos 3 left Maximos 10, with expressions of mutual respect: Relatio Motionis VI-XII 120-125.

On a later Saturday, when Maximos 10 was brought to the sekreton in the palace for questioning, Troilos 3 (κῦρις Τρώïλος) asked Maximos 10 if he did not agree that he deserved to be killed if any of the charges brought against him were true: Relatio Motionis XIII, 128. At the same session, when Maximos 10 objected that the bishop of Rome had been persecuted, not canonically deposed, the patrikios Troilos 3 (Τρώϊλος ὁ πατρίκιος) retorted that what had happened had happened and Maximos 10 did not know what he was talking about: Relatio Motionis XIV, 128.

On 9 September of the fifteenth indiction (9 September 656), the patrikioi Troilos 3 and Epiphanios 50, together with the bishop of Kaisareia, Theodosios 20, visited Maximos 10 at the monastery of Hagios Theodoros at Rhegion; when he still refused to obey the emperor and accept the Typos, the patrikioi had him flogged until stopped by Theodosios 20: Acta Primi Exilii 162A-164C. The following day Troilos 3 and Epiphanios 50 undertook to submit Maximos 10 and his disciple Anastasios 1 to further questioning in their exile at Mesembria and Perbera: Acta Primi Exilii 168AB. Troilos 3 later claimed that a letter sent to the monk Menas (see Menas 7 and Ioannes 490) seeking peace had really been sent to him: Acta Primi Exilii 169B.

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