liberality of King Ludwig, but was still forced by his personal financial situation in 1877 to sell the rights of several of his unpublished works (including the Siegfried Idyll) to the publisher Schott. Wagner wrote several articles in his later years, often on political topics, and often reactionary in tone, repudiating some of his earlier, more liberal, views. These include "Religion and Art" (1880) and "Heroism and Christianity" (1881), which were printed in the journal Bayreuther Blätter, published by his supporter Hans von Wolzogen. Wagner's sudden interest in Christianity at this period, which infuses Parsifal, was contemporary with his increasing alignment with German nationalism, and required on his part, and the part of his associates, "the rewriting of some recent Wagnerian history", so as to represent, for example, the Ring as a work reflecting Christian ideals. Many of these later articles, including "What is German?" (1878, but based on a draft written in the 1860s), repeated Wagner's antisemitic preoccupations. Wagner completed Parsifal in January 1882, and a second Bayreuth Festival was held for the new opera, which premiered on 26 May. Wagner was by this time extremely ill, having suffered a series of increasingly severe angina attacks. During the sixteenth and final performance of Parsifal on 29 August, he entered the pit unseen during act 3, took the baton from conductor Hermann Levi, and led the performance to its conclusion. After the festival, the Wagner family journeyed to Venice for the winter. Wagner died of a heart attack at the age of 69 on 13 February 1883 at Ca' Vendramin Calergi, a 16th-century palazzo on the Grand Canal. The legend that the attack was prompted by argument with Cosima over Wagner's supposedly amorous interest in the singer Carrie Pringle, who had been a Flower-maiden in Parsifal at Bayreuth, is without credible evidence. After a funerary gondola bore Wagner's remains over the Grand Canal, his body was taken to Germany where it was buried in the garden of the Villa Wahnfried in Bayreuth. Works Wagner's musical output is listed by the Wagner-Werk-Verzeichnis (WWV) as comprising 113 works, including fragments and projects. The first complete scholarly edition of his musical works in print was commenced in 1970 under the aegis of the Bavarian Academy of Fine Arts and the Akademie der Wissenschaften und der Literatur of Mainz, and is presently under the editorship of Egon Voss. It will consist of 21 volumes