Cappelletti was born in Reate in 1762. He had previously been Bishop of Fabriano e Metalica. He was transferred to the diocese of Ascoli on 26 August 1806. He died, according to Gams, p. 668 column 2, on 8 October 1831. Ritzler-Sefrin, Hierarchia catholica VII, p. 91, places his death on 9 December 1831. Almanacco reale per l'anno bisestile MDCCCXI (in Italian). Milano: Reale Stamperia. 1811. p. 201.
The claim is made by Ernesto Buonaiuti, but neither the name Lucentius nor the bishopric of Ascoli is mentioned in the subscription list of the Synod of Milan of 451. J.-D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus VI (Venice: A. Zatta 1759), pp. 142-144.
Teuderandus (sometimes called Wenderandus) was unable to attend the Roman synod of Pope Leo IV in 853, but sent his priest Walderanus to represent him. J.-D. Mansi (ed.), Sacrorum Conciliorum nova et amplissima collectio, editio novissima, Tomus XIV (Venice: A. Zatta 1759), p. 1021. Marcucci, p. 213-214. Cappelletti, p. 685.
