Sometimes known as Eccerinus. A neo-Latin tragedy modelled on Seneca, particularly Octavia, written by Albertino Mussato in 1314. The tragedy is based on the life of notorious tyrant, Ezzelino III da Romano (1194-1259). Described by Gary R. Grund as "the first tragic drama to emerge in the immediate aftermath of Lovato dei Lovati’s discovery of Seneca’s plays at Pomposa” ('Humanist Tragedies. The I Tatti Renaissance Library, 45'. Cambridge, MA/London: Harvard University Press, 2011 p. xx). Ecerinis was publicly declaimed on 3 December 1315 during the ceremony in which Mussato was crowned poet laureate of Padua; the tragedy was recited publicly in Padua on Christmas Day from 1315 to 1317.