Joan was the natural daughter of King John. She is known as Joanna, Joan of Wales, Lady of Wales or Siwan to the Welsh.

She was born in about 1191 but history isn’t entirely sure who her mother was. It may have been Clemence Pinel but this information is gleaned from a sentence in the Tewkesbury Annals. Or it may have been Clemence wife of Nicholas de Verdun. This later is circumstantial evidence based on Henry III placing his niece in Clemence de Verdun’s care (http://plantagenesta.livejournal.com/53309.html)

We do know that Joan was brought up in Normandy and that in 1205 John arranged her marriage to Llywelyn the Great. This according to Morris was a mark of John’s favour to the Welsh prince. The pair were married the following year in Chester when Joan was fifteen. Joan bore at least one son and one daughter to Llywelyn – maybe more.

The marriage was certainly important for the peace of Wales. In 1210 there was a bit of a misunderstanding with Llywelyn having a bit of a rebellion whilst his father-in-law was in Ireland. The result was that John collected men and resources and proceeded to invade North Wales where his men promptly began to starve. John had to withdraw- presumably covered in embarrassment. He returned later in the year – and burned Bangor.

Joan was sent to have a chat with her father. Everything East of Conwy was handed over to John along with thirty hostages but Llywelyn remained at liberty and in possession of Snowdonia.

Inevitably the peace was short-lived which wasn’t terribly good news if you happened to be one of the thirty hostages. By 1212 open warfare was raging along the Welsh border. Chroniclers make it clear that John arrived in Nottingham on the 14 August where he made himself at home by having twenty-eight of the Welsh hostages hanged on account of the failings of their countrymen. Then he sat down for a meal – as you do.

If coffee had been available it would have been at about the coffee and mint stage of the meal that a letter arrived from Joan warning her father that there were traitors in the midst of his court and that his life was in danger if he went ahead with his planned invasion of Wales. In the event of a battle he would have a nasty ‘accident’. This was the second note of the evening. The first one had arrived shortly before from the King of Scotland containing a similar message.

Rumour ran a-mock. The chroniclers of the time became carried away by every bit of gossip available from the rape of the queen to invasion by the French. Sticking to facts- John cancelled his invasion of Wales; ensured the safety of four-year-old Prince Henry; sent all his barons home and then sent politely worded notes to the men he suspected demanding hostages flushing out two conspirators in the process.

In April 1226 Joan obtained a papal decree from Pope Honorius III, declaring her legitimate on the basis that her parents had not been married to others at the time of her birth. This did not give her a claim to the throne.

Unfortunately this respectability, which came in part from her impact in keeping the peace between Wales and England, came to rather an abrupt end in 1230. Joan was caught alone in her bedroom with William de Braose, 10th Baron of Abergevenny, a Norman lord. Bad enough to be found in a compromising position but De Braose was hated by the Welsh, who called him Black William.

De Braose had been captured by the Welsh in 1228 and then ransomed. Llywelyn and de Braose had used the time to arrange the marriage of de Braose’s daughter Isabella to Llywelyn’s only legitimate son and heir, Dafydd. So when William visited during Easter 1230 there were no raised eyebrows. However, when William turned up in Joan’s bedroom in the dead of night – more than eyebrows were raised. Llywelyn raised a gibbet in his backyard and strung de Braose up. It didn’t stop the pre-arranged wedding going ahead in 1231 – you couldn’t make it up.

Joan was locked up for twelve months but was forgiven and reinstated. She died seven years after her unfortunate interlude with de Braose and was much mourned by Llywelyn who died in 1240 having founded a Friary in Llanfaes in Joan’s memory.

The friary was dissolved along with all the other monastic foundations in England and Wales by Henry VIII and Joan’s burial place was lost – her stone coffin was rediscovered being used as a horse trough. Today it can be seen in Beaumaris Church.

Joan appears largely in footnotes of books pertaining to the men in her life and no doubt had she not been married to Llywelyn we would know even less about her. As is often the way when the truth is not known fiction is given freer reign. Sharon Kay Penman’s book Here Be Dragons develops Joan’s story and that’s where I first encountered her.

Morris, Marc. (2015) King John- Treachery, Tyranny and the Road to Magna Carta. London: Penguin

Warren, W.L. (1978) King John. London: Methuen