Complex sentence: At the end of the summer semester 1815 (as in every year) Ackermann travelled to his small manor in the surroundings of Rüdesheim, where he fell ill with nephritis and died soon after.
Split into simpler sentences: At the end of the summer semester 1815, Ackermann traveled to his small manor in the surroundings of Rüdesheim. There he fell ill with nephritis and died soon after.