The internationally renowned church historian Dieter Girgensohn died in Göttingen on 18 March at the age of 90. He worked as a researcher at the Max Planck Institute for History from 1967-1999, specialising in the politics of the popes during the Great Western Schism, in particular the negotiations between Benedict XIII and Gregory XII (1407-1408) and the history of the Republic of Venice in the late Middle Ages. He was associated with the research project on conciliar history ('Konziliengeschichte') through publications in ‘Annuarium Historiae Conciliorum’ and his frequent participation in the conferences of the Society for Conciliar History, most recently in Vienna in 2014 at the conference ‘Konzil und Fürst', where he spoke on ‘Das Generalkonzil mit obrigkeitlicher Autorisierung im späteren Mittelalter (Perpignan, Pisa, Cividale)’. R.I.P.
