As a naval flag for the carrack Great Michael. As square flag carried by heraldic supporters c. 1542. National Library of Scotland (1542). "Plate from the Lindsay Armorial". Scran. Royal Commission on the Ancient and Historical Monuments of Scotland. 30 Ekim 2015 tarihinde kaynağından arşivlendi. Erişim tarihi: 9 Aralık 2009.
As a naval flag for the carrack Great Michael. As square flag carried by heraldic supporters c. 1542. National Library of Scotland (1542). "Plate from the Lindsay Armorial". Scran. Royal Commission on the Ancient and Historical Monuments of Scotland. 30 Ekim 2015 tarihinde kaynağından arşivlendi. Erişim tarihi: 9 Aralık 2009.