All grand dukes of Baden descend from her , via her son Charles II .
Ursula of Rosenfeld ( c. 1499 -- 26 February 1538 ) was the second wife of Margrave Ernest of Baden - Durlach .
All grand dukes of Baden descend from Ursula of Rosenfeld , via Ursula of Rosenfeld 's son Charles II .
Ursula of Rosenfeld ( c. 1499 -- 26 February 1538 ) was the second wife of Margrave Ernest of Baden - Durlach .