This study is the first to examine the important political role played by astrology in Italian court culture. Reconstructing the powerful dynamics existing between astrologers and their prospective or existing patrons, The Duke and the Stars illustrates how the “predictive art” of astrology was a critical source of information for Italian Renaissance rulers, particularly in times of crisis. Astrological “intelligence” was often treated as sensitive, and astrologers and astrologer-physicians were often trusted with intimate secrets and delicate tasks that required profound knowledge not only of astrology but also of the political and personal situation of their clients. Two types of astrological predictions, medical and political, were taken into the most serious consideration. Focusing on Milan, Monica Azzolini describes the various ways in which the Sforza dukes (and Italian rulers more broadly) used astrology as a political and dynastic tool, guiding them as they contracted alliances, made political decisions, waged war, planned weddings, and navigated health crises.

The Duke and the Stars explores science and medicine as studied and practiced in fifteenth-century Italy, including how astrology was taught in relation to astronomy.

Lives of the Milanese Tyrants brings together two biographies by the most important Milanese humanist of the early fifteenth century. Pier Candido Decembrio (1399–1477) served as secretary and envoy to the bizarre and powerful Filippo Maria Visconti, Duke of Milan. As a member of the duke’s inner circle, Decembrio was in a privileged position to write what historians agree is a unique masterpiece of Renaissance biography, based on his decades of direct experience. Also included in this volume is a work of homage to Visconti’s successor, Decembrio’s flattering account of the deeds of the most successful mercenary captain of the Renaissance, Francesco Sforza, who secured for himself and his heirs the disputed position of Duke of Milan through guile, force, and willpower. Both works are translated into English here for the first time from new Latin texts prepared specially for this edition.

A new history of how one of the Renaissance’s preeminent cities lost its independence in the Italian Wars.

In 1499, the duchy of Milan had known independence for one hundred years. But the turn of the sixteenth century saw the city battered by the Italian Wars. As the major powers of Europe battled for supremacy, Milan, viewed by contemporaries as the “key to Italy,” found itself wracked by a tug-of-war between French claimants and its ruling Sforza family. In just thirty years, the city endured nine changes of government before falling under three centuries of Habsburg dominion.

John Gagné offers a new history of Milan’s demise as a sovereign state. His focus is not on the successive wars themselves but on the social disruption that resulted. Amid the political whiplash, the structures of not only government but also daily life broke down. The very meanings of time, space, and dynasty—and their importance to political authority—were rewritten. While the feudal relationships that formed the basis of property rights and the rule of law were shattered, refugees spread across the region. Exiles plotted to claw back what they had lost.

Milan Undone is a rich and detailed story of harrowing events, but it is more than that. Gagné asks us to rethink the political legacy of the Renaissance: the cradle of the modern nation-state was also the deathbed of one of its most sophisticated precursors. In its wake came a kind of reversion—not self-rule but chaos and empire.