Which composer always had a funeral march in his symphonies?
Mahler included all kinds or music he heard around him in his symphonies, including marches. Many of his works include a funeral march as a complete movement- other than the 2nd (arguably), the 3rd, the 4th and the 8th (again arguably). It is, of course, arguable also that the movements such as the ‘nachtmusik’ in the 7th are not funeral marches per se – although they can be pretty gloomy.