J. C. Duncan writes Viking historical fiction and alternate history, with a particular interest in Harald Hardrada, warfare and the making of northern kingdoms.
J. C. Duncan is the publishing name of James C. Duncan, a London-born writer with a long-standing interest in medieval history. Alongside writing, he has described himself as an amateur bladesmith, an activity that gives him practical insight into the labour, materials and limitations behind historical weapons. His fiction grew from a fascination with Viking expansion, contested kingship and the way individual ambition can alter the course of a state.
The Light of the North books use alternate history to imagine a different balance of power in the Viking world, while the Last Viking sequence follows Harald Sigurdsson, later known as Harald Hardrada, from exile and mercenary service toward the Norwegian throne and the campaign of 1066. Duncan combines battles and voyages with dynastic politics, oath-bound relationships and the personal consequences of seeking royal power. His work is especially relevant to readers interested in the Varangian Guard, eleventh-century Scandinavia, the final phase of the Viking Age and historical narratives that test plausible alternatives to recorded events.