Lucrezia Borgia according to original documents and correspondence of her day /
Gregorovius, Ferdinand,1821-1891.
MacNab, Constance.
London New English Library
1969
Originally published as 'Lucrezia Borgia nach Urkunden und Korrespondenzen ihrer eigener Zeit'. Stuttgart: Cotta, 1847
Borgia, Lucrezia, 1480-1519