Sixtus of Siena

He began his career as a Franciscan preacher, speaking throughout Italy.

Though he was convicted to die in Rome for the crime of heresy or recidivism, he was saved by a Dominican inquisitor, the future Pope Pius V, who repealed the condemnation when Sixtus recanted and pledged to transfer to the Dominican Order instead.

Sixtus apparently destroyed all his remaining manuscripts and writings before his death.

[3] His work Bibliotheca sancta ex præcipuis Catholicæ Ecclesiæ auctoribus collecta[4] (Venice 1566) treats the sacred writers and their works, the best manner of translating and explaining Holy Writ, and gives a copious list of Biblical interpreters, in eight books.

It was the first of the genre of encyclopedic teaching repertories of dogma and Church tradition issued in the wake of the Council of Trent.