1. University of Kansas, MS C54 Title: Liber beati Ysidori episcopi Author: Isidore of Seville Place: Italy Date: [between 1401-1500].
2. Free Library of Philadelphia, Lewis E 136 Title: Carta pisana Author: Isidore of Seville Place: Pisa Date: 1090-1199
3. Free Library of Philadelphia, Lewis E 137 Title: Sentences Author: Isidore of Seville Place: Spain Date: 1100-1199