| Joan | |
|---|---|
| Lady of Wales | |
 Detail of Joan's sarcophagus in St Mary's and St Nicholas's Church, Beaumaris | |
| Born | c. 1191 |
| Died | 2 February 1237 (aged 45–46) |
| Spouse | Llywelyn the Great |
| Issue | Dafydd ap Llywelyn Gwladus Ddu Elen ferch Llywelyn Susanna ferch Llywelyn Marared ferch Llywelyn Elen the Younger ferch Llywelyn |
| House | Plantagenet |
| Father | John of England |
| Mother | Clemence |
Joan, Lady of Wales and Lady of Snowdon, also known by her Welsh name often written as Siwan (said, approximately /sɪuːan/) (c. 1191/92 – 2 February 1237) was an illegitimate daughter of King John of England, and the wife of Llywelyn the Great, Prince of Wales (initially King of Gwynedd), effective ruler of all of Wales.[1] Joan or Siwan in Welsh has been referred to as both "Lady of Wales"[2] and "Princess of Wales".[3]
- ^ Kate Norgate and A. D. Carr: "Joan [Siwan]", Oxford Dictionary of National Biography (Oxford: OUP, 2004), Retrieved 2 February 2019.
- ^ Messer, Danna R. (30 September 2020). Joan, Lady of Wales: Power and Politics of King John's Daughter. Pen and Sword History. p. 172. ISBN 978-1-5267-2932-3.
- ^ Sims-Williams, Patrick (25 November 2010). Irish Influence on Medieval Welsh Literature. OUP Oxford. p. 297. ISBN 978-0-19-159159-4.