In 1937 a Sabena Junkers Ju 52 crashed in Ostend — the plane struck a factory chimney while attempting to land in thick fog. Everyone aboard was killed, including Princess Cecilie, the older sister of Prince Philip, later Duke of Edinburgh.
She had been eight months pregnant, and a newborn infant was discovered in the wreckage. It’s speculated that she had given birth during the flight, and that this had led the pilot to try to land in hazardous conditions.