https://www.nytimes.com/2022/05/18/arts ... =url-share
(may be behind a paywall)
"Rosmarie Trapp, a member of the singing family made famous by the stage musical and film “The Sound of Music” and the last surviving daughter of Baron Georg Johannes von Trapp, the family patriarch, died on May 13 at a nursing home in Morrisville, Vt. She was 93.
The Trapp Family Lodge, the family business in Stowe, Vt., announced her death on Tuesday.
Ms. Trapp (who dropped the “von” from her name years ago) was the daughter of Georg and Maria Augusta (Kutschera) von Trapp, the would-be nun who became a governess with the family and ultimately married the baron."