Legendary rocker Robbie Robertson might not have been the biggest name in rock’s golden age, but Americans of all ages are familiar with the work of his decades-long career. The frontman for The Band was the artist behind 1960s hits like “The Night They Drove Old Dixie Down,” “The Weight” and “Up on Cripple Creek” as well as film scores for Martin Scorsese works like 1980’s “Raging Bull” and 2019’s “The Irishman” and 2023’s “Killers of the Flower Moon.” But since his death in August 2023, his legacy has been caught up in vicious family discord over potentially millions of dollars. The dispute …