Career
The couple had a relationship from 1914 until 1952. Her relationship to prince Wilhelm started in 1914 and lasted until her death, and their relationship is described as a happy one. The couple never married, but lived together on Stenhammar Palace.
From 1932, she was called his "hostess" and their relationship was privately recognized, though never officially, and she was never seen in public.
Jeanne de Tramcourt died in a car accident as a passenger while Wilhelm was driving.