Complex sentence: Johann Georg Turmair (Thurmayr) or Johannes Aventinus (4 July 1477--9 January 1534) was a Bavarian Renaissance humanist historian, philologist, and author of "Annals of Bavaria" (1523), a valuable record of the early history of Germany.
Split into simpler sentences: Johann Georg Turmair (Thurmayr) or Johannes Aventinus (July 4,1477--January 9,1534) was a Bavarian humanist historian and philologist. Aventinus wrote "Annals of Bavaria", a valuable record of the early history of Germany.