WIKIPEDIA ENTRTY: The Rothschild family is a wealthy family descending from Mayer Amschel Rothschild, a court Jew to the German Landgraves of Hesse-Kassel in the Free City of Frankfurt, who established his banking business in the 1760s.[2] Unlike most previous court Jews, Rothschild managed to bequeath his wealth and established an international banking family through his five sons,[3] who established themselves in London, Paris, Frankfurt, Vienna, and Naples.
Sounds exactly like a dynasty to me Lupo. Shall I continue with a definition of the word dynasty?
"A succession of people from the same family..."