Currently no one is the Head of this dynasty because of the Lex Langobardorum, so every descendant of the various branches has eqal rights in being the Head of the House of Obertenghi as the others
The family held the titles of Marquis of Milan and Genoa, Count of Luni, Tortona, Genoa and Milan and regent of the March that took the family's name in the 10th century, the "Marca Obertenga", which encompassed most of the territories of present-day Northwest Italy and parts of Switzerland.
Early in 951, Berengar II of Italy finished the reorganisation of the Italian feudal structure begun by his predecessor Hugh. He named three new margraves to three new territories:
975–1002: Adalbert IV, Margrave of Milan, Count of Genoa – first-born son of Otbert I; grandfather of Adalbert II Pelavicino, founder of the Pallavicini family.[9]
1014–1024: Hugh, Margrave of Milan, Count of Genoa – first-born son of Odbert II. Appointed by Emperor Henry II, he fell out after his death. Died childless.[2]
^Currò Troiano, Carmelo; Caputo, Don Salvatore. International Commission and Association of Nobility (ed.). Memories of the House of Este in England(PDF). Retrieved June 5, 2019.