Angelika was born to Ulrich and Gisela Sommer in Germany on December 8, 1949. In 1954, Angelika immigrated to Canada with her parents and her brother, Cornelius. Angelika and her family settled in Georgetown, Ontario. After graduating high school, Angelika moved to West Berlin, Germany to add the German Abitur to her Canadian high school diploma and become eligible to study at a German university. She was an excellent student and excelled at learning languages. She was fluent in German.

In the early 1970s, Angelika met and married a man named Uwe Schriever. Angelika and Uwe eventually divorced. Angelika later met and dated a man named Gunther (surname unknown).

Throughout the 1970s and 1980s, Angelika was involved in German politics and she supported Marxist and Communist ideologies. Angelika also trained and participated in local choirs.