In April 1400, there was a deadly riot in London. According to St Albans chronicler Thomas Walsingham, bands of apprentices came together in St Paul's churchyard and 'pueriliter eligentes sibi diuerse partes reges' [childishly chose their own kings]. 1 Divided into such camps, the events turned violent: 'non pueriliter sed perniciosum iniere conflictum; nempe quidam uulnerati, quidam perempti, sunt ibidem' [yet this was no childish prank, for they engaged in a vicious conflict, so that some indeed were wounded, and some were killed there]. 2 Of the two camps, one supported the King of England, the other the King of Scotland; those supporting the King of Scotland came off much worse. There is no suggestion in Walsingham or other chronicles that the groups reflected the apprentices' nationalities, but the episode nevertheless reflects how Anglo-Scottish relations were represented in terms of violent conflict. 3 During the time of the riot, an uneasy state of truce held between the two nations after a century of conflict. Walsingham continues, 'Quam pugnam secuta sunt prodigia in aere, a multis conspecta, armatorum, uidelicet sese collidencium' [Soon after this fight portents appearing in the sky of armed men clashing with each other were seen by many people]. 4 War was returning.Although not an Anglo-French conflict, the apprentices' riot takes place within the broader theatre of the Hundred Years War. Anti-Scottish enmity in England produced by sustained border wars was stoked by Scotland's interventions in Anglo-French conflict. Another episode from Walsingham's chronicle, detailing events that took place soon after the riot, illuminates these intersections.