He subscribed documents for Pope Urban III in Verona on 19 April,Kartusch, p. 107, note 8. 22 April,J. Pflugk-Harttung, Acta pontificum inedita I (Tübingen: F. Fues 1880), p. 331. 8 May, 17 June, 26 June, 14 July, 26 July, 9 August, 11 August, 30 August, 20 September, 30 November, 10 December 1186; 7 January, 12 January 1187.J.P. Migne (ed.), Patrologiae Latinae Collectio Tomus CCII (Paris 1855), pp. 1344, 1410, 1415, 1418, 1422, 1428, 1430, 1434, 1442, 1457, 1463, 1494, 1498. His latest known subscription for Urban III is at Verona on 5 February 1187.Jaffé II, p. 523, no. 15935. Urban III continued the hostilities with the emperor, offering no concessions, and finally arriving at the decision to excommunicate him. F. Gregorovius, The History of Rome in the Middle Ages Vol. IV, part 2 (London: George Bell 1896), pp. 610-612. He was deterred only by the urgent pleas of the people of Verona. Urban and the cardinals who were besieged with him were able to escape from Verona in the last weeks of September 1187, taking refuge in Ferrara. Urban died there on 20 October 1187.Jaffé, pp. 527-528.
