1. University of Pennsylvania, Ms. Codex 1247 DS ID: DS982 Title: Record of sale Author: Niccolò D'Andrea Piccolomini Place: Siena Date: 1469-1476.
2. University of Pennsylvania, Ms. Codex 1249 DS ID: DS984 Title: Contracts Author: Pius III Place: Siena Date: between 1492 and 1502. [1502?]