"Parsifal" was shown alongside other works at each of Cosima's festivals except for 1896, which was devoted to a revival of the "Ring" cycle. In 1886, her first year in charge, she added "Tristan und Isolde" to the canon. Amid the bustle of the festival Cosima refused to be distracted by the illness of her father, Liszt, who collapsed after attending a performance of "Tristan" and died several days later. Cosima supervised her father's funeral service and burial arrangements, but refused a memorial concert or any overt display of remembrance. According to Liszt's pupil Felix Weingartner, "Liszt's passing was not of sufficient importance to dim the glory of the Festival, even for a moment".