1. Summa de poenitentia et matrimonio, etc. Creator: Gregory IX, Pope, ca. 1170-1241Raymond, of Peñafort, Saint, 1175?-1275 Published / Created: [ca. 1250] Call Number: Marston MS 127 Image Count: 287 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > Summa de poenitentia et matrimonio, etc.