Calendar of Papal Registers Relating To Great Britain and Ireland: Volume 9, 1431-1447. Originally published by His Majesty's Stationery Office, London, 1912.
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'Additional Addenda and Corrigenda', in Calendar of Papal Registers Relating To Great Britain and Ireland: Volume 9, 1431-1447, ed. J A Twemlow (London, 1912), British History Online https://prod.british-history.ac.uk/cal-papal-registers/brit-ie/vol9/xiv-xv [accessed 24 February 2025].
'Additional Addenda and Corrigenda', in Calendar of Papal Registers Relating To Great Britain and Ireland: Volume 9, 1431-1447. Edited by J A Twemlow (London, 1912), British History Online, accessed February 24, 2025, https://prod.british-history.ac.uk/cal-papal-registers/brit-ie/vol9/xiv-xv.
"Additional Addenda and Corrigenda". Calendar of Papal Registers Relating To Great Britain and Ireland: Volume 9, 1431-1447. Ed. J A Twemlow (London, 1912), British History Online. Web. 24 February 2025. https://prod.british-history.ac.uk/cal-papal-registers/brit-ie/vol9/xiv-xv.