Complex sentence: In 1806 this was mediatised by Archbishop of Regenburg Karl Theodor von Dalberg as part of the Principality of Aschaffenburg, and in 1815 Rieneck was annexed by the Kingdom of Bavaria.
Split into simpler sentences: In 1806 this was mediatised by Archbishop of Regenburg Karl Theodor von Dalberg as part of the Principality of Aschaffenburg. In 1815 Rieneck was annexed by the Kingdom of Bavaria.