The best books on the Romanovs include The Romanovs by Simon Sebag Montefiore, Nicholas and Alexandra, The Race to Save the Romanovs, Four Sisters, Catherine the Great and Rasputin.

The best books on the Russian Revolution include A People’s Tragedy, The Russian Revolution by Sheila Fitzpatrick, Ten Days That Shook the World, Russia in Revolution, October and Doctor Zhivago.

The best books on the Spanish Inquisition include The Spanish Inquisition by Henry Kamen, God’s Jury, Inquisition by Edward Peters, The Ornament of the World, 1492 and The Heretic.

The best books on the Renaissance include The Swerve, Brunelleschi’s Dome, Leonardo da Vinci by Walter Isaacson, The Medici by Paul Strathern, Lives of the Artists and The Prince.

The best books on Medieval England include The Time Traveller’s Guide to Medieval England, The Plantagenets, The Norman Conquest, Life in a Medieval Village, The Greatest Knight and The Pillars of the Earth.

The best books on the Black Death include The Great Mortality, The Black Death by Philip Ziegler, A Distant Mirror, The Decameron, Year of Wonders and Doomsday Book.

The best books on the Knights Templar include The Templars by Dan Jones, The New Knighthood, The Trial of the Templars, The Knights Templar by Helen Nicholson, The Murdered Magicians and The Iron King.

The best books on the Crusades include The Crusades by Thomas Asbridge, God’s War, The Crusades Through Arab Eyes, Crusaders by Dan Jones, A History of the Crusades and The First Crusade by Peter Frankopan.

The best books on the Byzantine Empire include Byzantium by Judith Herrin, A Short History of Byzantium, Lost to the West, The New Roman Empire, 1453 and The Alexiad.

The best books on the Ottoman Empire include Osman’s Dream, Lords of the Horizons, The Ottomans by Marc David Baer, The Fall of the Ottomans, Empress of the East and My Name Is Red.