Savicki, Mariusz. “Celebrations at the Berlin Court As Reported by Secretary of the English Ambassador Philip Plantamour”. Quaestio Rossica 8, no. 4 (November 26, 2020): 1217–1229. Accessed September 17, 2021. https://qr.urfu.ru/ojs/index.php/qr/article/view/qr.523.