Pope Innocent III /

by Tillmann, Helene, 1896-
Published 1980

Julius II, the warrior pope /

by Shaw, Christine
Published 1993

The book of pontiffs (liber pontificalis) /

Published 1989

Innocent III : leader of Europe, 1198-1216 /

by Sayers, Jane E. (Jane Eleanor), 1933-
Published 1993

The lives of the ninth-century popes (Liber pontificalis) : the ancient biographies of ten popes from A.D. 817-891 /

Published 1995

The papal year /

by Hebblethwaite, Peter
Published 1981

Hitler's Pope : the secret history of Pius XII /

by Cornwell, John, 1940-
Published 1999

Commentaries /

by Pius II, Pope, 1405-1464
Published 2003

Witness to hope : the biography of Pope John Paul II /

by Weigel, George, 1951-
Published 2005

Lives of the popes /

by Platina, 1421-1481
Published 2008

Clement V /

by Menache, Sophia
Published 1998

Pope Gregory VII : 1073-1085 /

by Cowdrey, H. E. J. (Herbert Edward John)
Published 1998