The first question that this book should pose is “Why?”. Why do we need another history of the crusades? What does this one add? I had previously enjoyed Peter Frankopan’s Silk Road, he clearly has a head for both the details of politics and the big picture. In this book he applies that talent to the role of Byzantine emperor Alexios Komnenos in the crusade.
This allows him to pick up on a couple of loose threads from the traditional story of the first crusade: why did Alexios send to the west for help? Why and when did the Byzantine cut ties with the crusaders? The obvious historical source for Alexios is the Alexiad, but this is written by his daughter Anna and has an pretty definite bias to it.
The answer to the first question is perhaps the more interesting: why did the Byzantines request help at that point in time? Alexios had been in power for over a decade, and the Alexiad presents him as leading a recovery for earlier military setbacks. The chronology is not as simple as it appears however – Alexios’ reign had military failures too and he was becoming increasingly under threat domestically.
Later in the book Alexios feels more peripheral, but Frankopan presents a case that this distance from the crusaders was in good faith. He was unwilling to leave the capital and risk revolt there, he provided supplies readily in most cases, and where he didn’t it would have appeared futile to do so.
I don’t think this book succeeds at significantly changing the narrative of the first crusade, but it does provide a new slant and point of view. The coverage of the campaigns in Asia Minor is particularly good. Worth reading for anyone who thinks they are already familiar with the story of the crusades.