I became interested in the genealogy of European nobility in 2005 after seeing a documentary on the Habsburg-Lorraine family.
In this documentary, broadcast on the ARTE channel, several members of the family were interviewed.
Otto of Habsburg-Lorraine (1912-2011) talked about his parents, Charles I (1887-1922) and Zita of Bourbon-Parma (1892-1989).

I started my family tree of the European nobility with the Habsburgs. With all the marriages between Habsburgs and Bourbons I completed this tree with the Bourbons.
As time went by I expanded my research to other European noble families (Hohenzollern, Saxony, Rohan, Savoy, Wittelesbach, Romanov, Medicis, Montmorency and other lesser known families). The family tree I have created now covers all European countries.

You can consult the elements available on Généanet. I update this tree regularly after additions or corrections.