Clan Sweeney supporters of the powerful MacDougall Lords of Lorne who supported John Balliol as patriots, as long as John was king of Scotland. After the murder of John Comyn, the nephew of Balliol, by Bruce in 1306, the First War of Scottish Independence became at one and the same time a civil war. The Balliol and Comyn parties taking the side of the English in opposition to Bruce, crowned Robert I of Scotland on 25 March 1306. This was an era of constantly shifting alliances, and in 1301 John MacSween was in alliance with Aonghus Óg Mac Domhnaill, Lord of Islay
King of the Romans of Swabia was crowned "Rex Romanorum" at Mainz Cathedral (as was King Rupert centuries later), but he had another coronation in Aachen after he had prevailed against his Welf rival Otto IV. At some time after the ceremony, the king would, if possible, cross the Alps, to receive coronation in Pavia or Milan with the Iron Crown of Lombardy as King of Italy. Finally, he would travel to Rome and be crowned Emperor by the Pope. Because it was rarely possible for the elected King to proceed immediately to Rome for his crowning, several years might elapse between election and