Broll studied history and German language and literature in Munich and Münster, graduating with the First State Examination in 1956 and the Second State Examination in 1958. He then worked as a secondary school teacher in the teaching profession, most recently as a senior student councilor. From 1968 to 1977 Broll was a member of the council of the city of Oldenburg and from 1970 to 1987 chairman of the district CDU association. He was also a board member of the CDU regional association. From 1976 to 1987 Broll was then a member of the German Bundestag. He was always elected via the state list in Lower Saxony. In the Bundestag, he was deputy chairman of the Committee for Electoral Examination, Immunity and Rules of Procedure from 1982 to 1984.
Literature
Herbst, Ludolf; Jahn, Bruno (2002). Vierhaus, Rudolf (ed.). Biographisches Handbuch der Mitglieder des Deutschen Bundestages. 1949–2002 [Biographical Handbook of the Members of the German Bundestag. 1949–2002] (in German). München: De Gruyter - De Gruyter Saur. p. 1715. ISBN978-3-11-184511-1.