Hoc in volumine hec continentur Laurentii Vallensis Elegantie ... 1505: title page (Joannem Tortelium)
Io. Tortellii De medicina et medicis, 1954.
Ioannis Tortellii Arrentini Commentariorum grammaticorum ... 1479.
Iohannis Tortellii Arretini Commentariorvm grammaticorvm, 1484.
nuc90-69211: His Orthographia [MI] 1479 (hdg. on GmC rept.: Tortellius, Johannes)
Giovanni Tortelli, primo bibliotecario della Vaticana, 2016: title page (Giovanni Tortelli) page 17 (Giovanni Tortelli di Arezzo) page 18 (born around 1400 near Arezzo and thus often called Aretino) page 56 (died in 1466)
Athanasius, Saint. D. Athanasii Archiepiscopi Alexandrini, viri vndecunque tum doctissimi tum sanctissimi, atq[ue] pro catholica fide athletae inuictissimi opera omnia, 1548 contents (D. Athanasii Archiepiscopo Alexandrini viri sancti vita per Ioannem Aretinum collecta)
NUC pre-56 (hdg.: Tortelli, Giovanni, 1400-1466; usage: Ioannis Tortelii Aretini)
Enciclopedia Treccani, viewed online on August 11, 2016 (Tort{grave}elli, Giovanni; latinized as Johannes Tortellius; born around 1400; originally from the area around Arezzo; received a degree in medicine in 1433; served as librarian of the Biblioteca vaticana during the papacy of Pope Nicholas V (1447-1455)) http://www.treccani.it/enciclopedia/giovanni-tortelli
CERL Thesaurus (online) 13 June 2019: (Tortelli, Giovanni; archpriest, physician, hellenist, grammarian, librarian, historian; born and died in Arezzo (Italy); [cites forms of names used in publications and in catalogues]) https://data.cerl.org/thesaurus/cnp01351692