The death of Robin de la Lanne

http://www.dailymail.co.uk/news/article-2164294/Dashing-Scottish-aristocrat-bed-hopping-ways-inspiration-James-Bond-dies-aged-87.html

He had a relationship with Duchess Margarethe of Württemberg that led to the birth of a natural child, Patrick Francis de la Lanne.  Patrick was born in San Francisco in 1962.  He is the mayor of Delmenhorst, Germany.

Patrick was not raised by his mother, but by a foster mother, Charlotte Zauzber, who died in  2007.

Patrick is listed twice in the California Birth Index as Patrick Francis and Francis Patrick, giving the impression of twins.  This is incorrect.  Margarethe gave birth to one son. 

http://royalmusingsblogspotcom.blogspot.com/2008/10/german-mayor-has-royal-connections.html