Dvořák returned from the United States on 27 April 1895 with his wife and Otakar Berger, and took care to avoid spreading the news about his return. However, after a performance of Dimitrij at the National Theater on 19 May, Dvořák fled to the family country cottage in Vysoká. Dvořák's first love and later sister-in-law, Josefina Kaunitzová, née Čermáková, died in May 1895. He and she had maintained friendly relations over the years. After her death he revised the coda of his Cello Concerto in her memory. During Dvořák's final years, he concentrated on composing opera and chamber music. In November 1895, he resumed his professorship at the Prague Conservatory. Between 1895 and 1897, he completed his string quartets in A-flat major and G major, and also worked on the cycle of symphonic poems inspired by the collection Kytice by Karel Jaromír Erben. As seen in Burghauser's 1960 Catalogue, Dvořák wrote his five Symphonic Poems in 1896, but after that completed few works per year, mainly operas: Jakobín in 1896, nothing in 1897, only The Devil and Kate in 1898–99, Rusalka in 1900, two songs and "Recitatives" in 1900/01, and finally the opera Armida in 1902–03. Rusalka became the most popular of all Dvořák's ten operas and gained an international reputation (below under Works, Operas).