Theodor von Sickel was a German-Austrian historian born in Aken, Province of Saxony, Kingdom of Prussia. He specialized in early European medieval history, and is considered to be the founder of modern diplomatics. Wikipedia
Born: December 18, 1826, Aken (Elbe), Germany
Died: April 21, 1908 (age 81 years), Merano, Italy
Partner: Anna von Sickel