Research into medieval military history in recent years has focused increasingly on the careers of individual soldiers. The creation of the database, ‘The Soldier in Later Medieval England’, has enabled detailed analysis of warriors of various types, and of different nationalities, who fought in English service in France during the fifteenth century. This focus has allowed detailed consideration of the extent to which the Hundred Years War witnessed the increasing professionalisation of the medieval warrior, as he took what had been an obligation and transformed it into an occupation. A lack of record evidence similar to that which has survived for medieval English armies means that similar work on the careers of Scottish soldiers has been largely absent. Although analysis has been undertaken on the political careers of important figures and families in contemporary Scottish history, their military careers have not been considered in detail. Chronicle sources provide a useful alternative to record evidence with their often detailed depictions of battles, sieges and raids, and the participants therein. Scottish literary sources, although written after the events described, are based in part on earlier works and therefore provide useful detail on the military careers of prominent men. As already suggested, these sources are not without their problems. Scottish chronicles at times give prominent place in their accounts to the ancestors of families prominent at the time their authors were writing. They also sometimes rewrote historical events to better suit the political reality of their own time, illustrated by the differing depictions of Robert the Steward following the succession of the Stewart dynasty to the throne. English chroniclers too provide essential detail of military activity, often reproducing official correspondence regarding battlefield casualties, captured enemies, and the leaders of invading forces. Chronicles were also the means by which many warriors’ deeds were remembered, and it is probable that medieval soldiers themselves recognised this fact. This and other evidence will provide the basis for exploration of Scottish military careers in this period.