Bellarion the Fortunate (1926) is a historical adventure novel by Rafael Sabatini, set in 15th-century Italy during the tumultuous era of warring city-states. The story follows Bellarion, an orphan raised in a monastery, who leaves the cloister to study in Pavia but soon becomes entangled in political intrigue, war, and romance. Brilliant, idealistic, and quick-witted, Bellarion rises from humble beginnings through intelligence and charm rather than brute strength. After a series of misadventures, he enters the service of the powerful Marquis of Montferrat and meets the beautiful and cunning Princess Valeria, whose ambitions and loyalties are uncertain. Caught between duty, love, and survival, Bellarion uses strategy and diplomacy to navigate treacherous alliances and plots that shape the fate of Italian principalities. Through daring exploits, disguises, and narrow escapes, he earns his title "the Fortunate," though his fortune stems as much from intellect as luck. The novel combines romance, adventure, and political drama, echoing Sabatini's trademark style of swashbuckling wit and moral complexity. Ultimately, Bellarion's story celebrates courage, intelligence, and integrity in a world of deceit and ambition.