Editing Princess of Wales (section)

=== Eleanor de Montfort and Gwenllian ===
[[File: Gwenllian memorial Sempringham.jpg | 190px|thumb|Memorial to Gwenllian in [[Sempringham]], England<ref name=":0">{{Cite web |title=Gwenllian The Lost Princess of Wales |url=https://www.historic-uk.com/HistoryUK/HistoryofWales/Gwenllian-Lost-Princess-Of-Wales/ |access-date=2022-09-11 |website=Historic UK |language=en-GB |archive-date=23 March 2022 |archive-url=https://web.archive.org/web/20220323203401/https://www.historic-uk.com/HistoryUK/HistoryofWales/Gwenllian-Lost-Princess-Of-Wales/ |url-status=live }}</ref>]]

Following her wedding ceremony in 1278, [[Eleanor de Montfort]] was officially known as Princess of Wales.<ref name=":1">Bliss, W. H., editor. Calendar of Papal Registers Relating To Great Britain and Ireland: Volume 1, 1198–1304. Her Majesty's Stationery Office, London, 1893.</ref><ref name=":3">Calendar of Patent Rolls, 1272–81, 306; CPR, 1281–92, 11</ref><ref name=":5">''Calendar of Ancient Correspondence'', 75–76</ref><ref name=":6">''Foedera'' I, ii, 576, 584, 587</ref> On 19 June 1282, she died giving birth to her first child, [[Gwenllian of Wales|Gwenllian]].<ref>The [[Chronicle of Bury St Edmunds]], pp. 74–76</ref>

The infant was captured by English forces the following year, after her father, [[Llywelyn ap Gruffudd|Llywelyn ap Gruffydd]], was killed in December 1282. At [[Edward I of England|Edward I]]'s orders, she was kept in the remote [[Sempringham Priory]] in [[Lincolnshire]], where she remained until her death in 1337.{{Citation needed|date=October 2022}}

Gwenllian's status was acknowledged at least once by the English Crown. When writing to the pope, attempting to secure more money for Sempringham Priory, the king stated that "...herein is kept the Princess of Wales, whom we have to maintain". The title "Princess of Wales" as used here did not have its usual accepted meaning.<ref name=":2">{{cite book |author=Fisher, Deborah |title=Princesses of Wales |publisher=University of Wales Press |year=2005 |isbn=9780708319369 |pages=viii-ix}}</ref><ref name=":0" />