Joan, Lady of Wales
| Joan | |
|---|---|
| Lady of Wales | |
Modern stained glass depiction of Joan, St Mary's, Trefriw, from 1933 | |
| Born | c. 1191 |
| Died | 2 February 1237 (aged 45–46) |
| Spouse | Llywelyn the Great (m. 1204/5) |
| 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 Siwan (said, approximately Welsh pronunciation: [ʃɪʊan]) (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. Joan or Siwan in Welsh has been referred to as both "Lady of Wales" and "Princess of Wales".