page_title: Joan, Lady of Wales
hierarchical_section_title: Joan, Lady of Wales
caption_attribution_description: Cymraeg: Eglwys y Santes Fair, Biwmares, Ynys Môn, Cymru. English: Church of St Mary and St Nicholas, Beaumaris, North Wales. Grade: I; Date Listed: 23 September 1950; Cadw Building ID: 5620.
context_page_description: Joan, Lady of Wales and Lady of Snowdon, also known by her Welsh name of Siwan, was the illegitimate daughter of King John of England, and was the wife of Llywelyn the Great, Prince of Wales and Gwynedd, effective ruler of most of Wales.
context_section_description: Joan, Lady of Wales and Lady of Snowdon, also known by her Welsh name of Siwan, (c. 1191–1192 – February 1237) was the illegitimate daughter of King John of England, and was the wife of Llywelyn the Great, Prince of Wales and Gwynedd, effective ruler of most of Wales.
caption: Detail of Joan's sarcophagus in St Mary's and St Nicholas's Church, Beaumaris
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