Roger-Wauthier van der Noot, 1st Baron of Carloo
Roger- Wauthier van der Noot, born 27 February 1644, was a mayor of Brussels.
He became the 1st Baron of Carloo.
Poul Abraham Lehn
Poul Abraham Lehn( 9 October 1732 – 24 October 1804), Baron of Lehn and Baron of Guldborgland, was a feudal baron of the Danish and Norwegian nobility and one of the greatest landowners of his time in Denmark.
Chris von Wangenheim
Christoph von Wangenheim( 21 February 1942 – 9 March 1981) was a German fashion photographer of the late 1960s through the early 1980s.
Martin Stern Jr.
Martin Stern Jr. (April 9, 1917 - July 28, 2001) was an American architect who was most widely known for his large scale designs and structures in Las Vegas, Nevada.
He is credited with originating the concept of the structurally integrated casino resort complex in Las Vegas.
Robert Bruce, 2nd Baron of Clackmannan
Sir Robert Bruce, 2nd Baron of Clackmannan& Rate( died 23 July 1403) was the son of Sir Thomas Bruce 1st Baron of Clackmannan and Marjorie Charteris of Stenhouse.
Christoph von Graffenried, 1st Baron of Bernberg
Christoph von Graffenried, 1st Baron of Bernberg, also known as Christoph de Graffenried,( 15 November 1661 – 1743) was a British peer from Switzerland who founded New Bern, Carolina, in 1710.
Today, he is best known for his memoir," Relation of My American Project"( c. 1716), which recounts his life as the Baron of Bernburg and Landgrave of Carolina.
Jocelyn de Angulo
Jocelyn de Angulo, 1st Baron of Navan(" fl." 1172), was an Anglo- Norman knight.
Christoph von der Malsburg
Christoph von der Malsburg( born 8 May 1942 in Kassel) is a German physicist and neuroscientist.
Christoph von Dohnányi
Christoph von Dohnányi( born 8 September 1929) is a German conductor.
Simon Rodriguez de Evora
Simon Rodriguez de Evora, 1st Baron of Rode( Antwerp, 1560 -25 May 1618) was a Flemish nobleman.

Question: Were Martin Stern Jr. and Christoph Von Graffenried, 1St Baron Of Bernberg of the same nationality?
Answer: no