Who is Josephine/The Admiral's Wife/The Woman with Brocade in Her H from Einstein's Dreams and what is their importance?

Josephine is the wife of the admiral, and one of the four people who meet at St. Moritz every year in the dream where things change very slowly with the passage of time. Josephine makes the same comments every year and is uncomfortable with the new idea of sleeping with her head under the sheet to keep out the draft. Change makes her uncomfortable in her slow-changing world.