Ingeborg von Heister was the first German woman to cross the Atlantic east and west single-handed on a trimaran called "Ultima Ratio" in 1969/70.
She sailed on a 35-foot trimaran by the English designer Arthur Piver, a Nimble type Lodestar. Later, Astrid's mother and Wilfried Erdmann's mother-in-law lived with her second husband Cyril Ford on an old fishing boat in the south of France. Ingeborg von Heister spent her last years in Italy. She died at the age of 77.