At the beginning of 1942, Sibylla Cronenberg, an unmarried woman over the age of 70, took the Jewish couple Salomon and Henriette Jacoby and their daughter Hildegard Schott into her home at number 73 Talweg in Bonn. The family had previously escaped from the Fort V assembly camp in Cologne-Müngersdorf with the aid of Josephine Odenthal, a relative of Cronenberg’s, and her husband Heinz. The Odenthals regularly visited the family in their hiding place and provided them with food.
In May 1943 the Jacobys had to leave Cronenberg’s home. Posing as a bombed-out family, they were given accommodation by Katharina Bayerwaltes in Bonn. They experienced liberation there on March 9, 1945.
After the war Sibylla Cronenberg needed care and moved to live with a relative in Bad Kreuznach, later to Kirn. She was honored posthumously as Righteous Among the Nations by the Israeli Holocaust memorial center Yad Vashem in 2005.