Prince of Wales regard as having been the last native Prince. On 16 September 1400, he was proclaimed Prince of Wales by his supporters, and held parliaments at Harlech Castle and elsewhere during his revolt, which encompassed all of Wales. It was not until 1409 that his revolt in quest of Welsh independence was suppressed by Henry IV. The tradition of conferring the title "Prince of Wales" on the heir apparent of the monarch is usually considered to have begun in 1301, when King Edward I of England invested his son Edward of Caernarfon with the title at a Parliament held in Lincoln.
King of Wales being from Wales he was by extension called the King of Wales, although he did not control all of the country. Nonetheless, he did unite much of the land under his power, thus demonstrating that it could be possible for Wales to exist as a unified political entity. Though he died in 878, the legacy of what he had accomplished was significant enough to act as motivation for future Welsh leaders to aspire to. This would eventually lead to the rule of Gruffudd ap Llywelyn, the first true Welsh king. From the smaller kingdoms of Wales eventually emerged four major