In the last phase of his life, from 1917–1925, Frege published only the papers mentioned earlier (1918a, 1918b, 1923) and developed some unpublished fragments of philosophical works. Unfortunately, his last years saw him become more than just politically conservative – his diary for a brief period in 1924 show sympathies for fascism and anti-Semitism (see Frege 1924 [1996], translated by R. Mendelsohn).  He died on July 26, 1925, in Bad Kleinen (now in Mecklenburg-Vorpommern).