1. University of Pennsylvania, Ms. Coll. 764 Item 101 DS ID: DS1929 Title: Power of attorney Date: 1421.
2. University of Pennsylvania, Ms. Coll. 764 Item 130 DS ID: DS1959 Title: Power of attorney Date: 1437.
3. University of Pennsylvania, Ms. Coll. 764 Item 167 DS ID: DS1988 Title: Power of attorney and Deed Date: 1489.