On his deathbed, Picasso is alleged to have whispered “Modigliani,” the name of the Italian painter with whom he shared a tumultuous friendship in the Paris of the 1920s. Amedeo Modigliani, known chiefly for his sensual, primitive-looking nudes, succumbed to a lethal trifecta of tuberculosis, addiction and poverty 50 years earlier at the age of…