Medievalist, historian of the papacy; b. Eberbach-Neckar, Germany, Dec. 31, 1891; d. Bonn, Germany, Nov. 25, 1963. From 1922 to 1924 he was an assistant to Paul kehr, who greatly influenced him. In 1924–25 Holtzmann was active in the newly revived Prussian Historical Institute in Rome, and then qualified for university lecturing at Berlin in 1926. He was ordinary professor of medieval history at Halle from 1931 to 1936 and at Bonn from 1936 to 1955. From 1953 to 1961 he was director of the German Historical Institute in Rome, which he had revived. Holtzmann's scholarly publications consist of a number of critical editions of sources and a series of research papers, for the most part connected with his source editions, e.g., several reports on discoveries in English archives connected with his research monographs on English history in the Middle Ages, and his important works on the papacy of the high Middle Ages, written to a large extent as byproduct of the continuation of the Regesta Pontificum Romanorum: Italia pontificia begun by Kehr.
Bibliography: w. holtzmann, Papsturkunden in England, 3v. (Abhandlungen der Akademie NS 25, 3d ser. 14–15, 33; Berlin-Göttingen 1930–52); "Papst-, Kaiserund Normannenurkunden aus Unteritalien," Quellen und Forschungen aus italienischen Archiven und Bibliotheken (Rome 1897–) 35 (1955) 46–85; 36 (1956) 1–85; 42–43 (1963) 56–103; Beiträge zur Reichsund Papstgeschichte des hohen Mittelalters: Ausgewählte Aufsätze (Bonn 1957) 235–238, bibliog. of Holtzmann's works; ed., Kanonistische Ergänzungen zur Italia pontificia (Tübingen 1959); Samnium, Apulia, Lucania (Berlin 1962) v.9 of p. f. kehr, Regesta Pontificum Romanorum. Italia Pontificia, 8 v. (Berlin 1906–35). p. e. hÜbinger "Nachruf auf W. H.," Mitteilungsblatt der Arbeitsgemeinschaft für Forschung des Landes Nordrhein-Westfalen 18 (1964) 13–21, life of Holtzmann and bibliog. of his last works.
[k. h. schwarte]