Sixteenth-century Europe was a hostile world dominated by court politics and patriarchal structures, and yet against all odds, two women rose to power: Elizabeth I and Catherine de Medici. One a young Virgin Queen who ruled her kingdom alone, and the other a more experienced and clandestine leader who used her children to shape the dynasties of Europe, much has been written about these shrewd and strategic sovereigns. But though their individual legacies have been heavily scrutinized, nothing has been said of their complicated relationship—thirty years of camaraderie, competition, and conflict that forever changed the face of Europe.

In Blood, Fire, and Gold, historian Estelle Paranque offers a new way of looking at two of history's most powerful women: through the eyes of the other. Drawing on their private correspondence and brand-new research, Paranque shows how Elizabeth and Catherine navigated through uncharted waters that both united and divided their kingdoms, maneuvering between opposing political, religious, and social objectives—all while maintaining unprecedented power over their respective domains. Though different in myriad ways, their fates and lives remained intertwined of the course of three decades, even as the European geo-politics repeatedly set them against one another. Whether engaged in bloody battles or peaceful accords, Elizabeth and Catherine admired the force and resilience of the other, while never forgetting that they were, first and foremost, each other's true rival.

This is a story of two remarkable visionaries: a story of blood, fire, and gold. It is also a tale of ceaseless calculation, of love and rivalry, of war and wisdom, and—above all else—of the courage and sacrifice it takes to secure and sustain power as a woman in a male-dominated world.