von Meran
The von Merans are a cadet line of the Habsburgs through the secret morganatic marriage of Archduke Johann, Vicar of the Empire, in 1823. The 'Count/Countess von Meran' title was created in 1844. They have not been destined to fade into obscurity as various members of the family have had success in marrying well.
some von Meran marriages:
a Count von und zu Trauttmansdorff-Weinsburg, the 11th Fürst zu Hohenlohe-Waldenburg-Schillingsfürst (Ratibor & Corvey) in 1965, the Erbgraf von Quadt zu Wykradt und Isny in 1992 (his mother a Princess of Bavaria), a Countess von und zu Eltz, a Princess of Schwarzenberg, Prince Heinrich XII Reuss in 1973, a Prince von Auersperg and a Prince von Auersperg-Breunner, a Countess Henckel von Donnersmarck (her mother a Princess of Luxembourg), and in 2001 a Countess von Waldstein (her mother a Habsburg Archduchess).
In 1995 Baroness Maria Theresia von Gudenus, a daghter of Countess Anna Maria von Meran, moved back into the Imperial and Royal line when she married Archduke Eduard.
Count Moritz von Goëss, who married Duchess Fleur of Württemberg in 2003, is a grandson of Countess Marie Valerie von Meran.