CITROEN is not only a car

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception 

André-Gustave Citroën (1878-1935) was the developer of a car named after him. 

 

The Citroen car company that he founded in 1919 became the world's fourth largest car manufacturer in 1932. CITROEN is a Dutch word meaning "lemon"; as a family name it is documented with Jewish families in the Netherlands. The German variants ZITRON or CITRON (Polish spelling) are typical of Jewish families from Central Europe.
 

For the family tree of the CITROEN family follow the link http://www.joodsamsterdam.nl/citroen.htm