1453: Constantinople and the Immortal Rulers

Experience the final days of Byzantium as history itself comes alive—where courage, innovation, and empire collide in a world on the brink of change.

Witness the fall of an empire through the eyes of those who lived it.

Emperor Constantine Palaiologos stands atop the legendary Theodosian Walls, facing Sultan Mehmed II’s massive army. With just 7,000 defenders against 120,000 invaders, the emperor must rely on an unlikely coalition: Giovanni Giustiniani’s Genoese warriors, Grant the Scottish engineer, Captain Michalis’s fierce Cretans, and Theodora, his trusted emissary racing against time. As Orban’s colossal cannons thunder against walls that have stood for a millennium, the fate of East and West hangs by a thread.

Billy Cotsis brings the siege of Constantinople to life with vivid, human detail, blending historical accuracy with the grit, fear, and courage of those who fought for civilization itself. Through the perspectives of both Christian and Muslim combatants, including the intimate chronicles of George Sphrantzes, the novel explores loyalty, faith, and the price of empire while capturing the technological revolution reshaping medieval warfare.

As the final assault begins on May 29, 1453, heroes emerge from every corner of the city—but with Venetian ships on the horizon and Ottoman banners flying over breached towers, will Constantine’s desperate gamble save Rome’s last remnant, or will the city finally succumb to history?

An epic of courage, cunning, and the human spirit at the end of an era.

About the Author :
Billy Cotsis was born in 1977 in Canterbury, Sydney, to parents from the Greek island of Lesvos. He spent nearly a year of his childhood in Greece, and in total has lived there for three years.

In 1995, upon entering Macquarie University, he joined the well-organized and active Greek club, the Macquarie University Greek Association, where he spent four years learning about and promoting his heritage. A return trip to Greece in 1999 rekindled his passion for the country. Since then, he has dedicated much of his spare time to researching his Greek roots from Asia Minor and Lesvos, as well as exploring the remnants of Greek settlements in other countries. To date, he has traveled to almost 90 countries and over 100 Greek islands.

Billy is a prolific writer, with more than 350 articles published in Greek and local media around the world. Since 2012, he has written 27 short film and documentary projects and contributes history-focused articles to his blog, Herculean. He was also a presenter on the award-winning Meraki TV show.

By profession, Billy works as a public servant, improving communities and local economies, and he is a dedicated human rights advocate. An avid Manchester United and Canterbury Bulldogs fan, he is currently developing a feature film titled Once Upon a Time in Crystal Palace.