Welsh nationalism () emphasises and celebrates the distinctiveness of Welsh culture and Wales as a nation or country. Welsh nationalism may also include calls for further autonomy or self determination which includes Welsh devolution, meaning increased powers for the Senedd, or full Welsh independence. History English rule in Wales Through most of its history before the Anglo-Norman Conquest, Wales was divided into several kingdoms. From time to time, rulers such as Hywel Dda, Gruffudd ap Llywelyn and Rhodri the Great managed to unify many of the kingdoms, but their lands were divided on their deaths. Wales first appeared as a unified independent country in 1055 under the leadership of the only King of Wales to have controlled all the territories of Wales, Gruffydd ap Llywelyn until 1063. Three years later the Norman invasion began which briefly controlled much of Wales, but by 1100 Anglo-Normans control was reduced to the lowland Gwent, Glamorgan, Gower, and Pembroke, regions which experienced considerable Anglo-Norman colonisation, while the contested border region between the Welsh princes and Anglo-Norman barons became known as the Welsh Marches. Incursions from the English and Normans also amplified divisions between the kingdoms. In the 12th century, Norman king Henry II of England exploited differences between the three most powerful Welsh kingdoms, Gwynedd, Powys, and Deheubarth, allowing him to make great gains in Wales. He defeated and then allied with Madog ap Maredudd of Powys in 1157, and used this alliance to overwhelm Owain Gwynedd. He then turned on Rhys ap Gruffydd of Deheubarth, who finally submitted to him in 1171, effectively subjugating much of Wales to Henry's Angevin Empire. In the 13th century, the last prince of Wales, Llywelyn the Last retained his rights to Wales in agreement with King Henry in the treaty of Montgomery in 1267. Henry's successor, Edward I disapproved of Llywelyn's alliance with Simon de Montfort, who revolted along with other barons against the English king in the second barons' war of 1264 to 1267 and so in 1276, Edward's army forced Llywelyn into an agreement that saw Llywelyn withdraw his powers to Gwynedd only. In 1282 whilst attempting to gather support in Cilmeri near Builth Wells, Llywelyn was killed by one of Edward's soldiers. Llywelyn's brother, Dafydd ap Gruffydd briefly led a force in Wales, but was captured and later hung drawn and quartered by Edward, thus ending Welsh independence. Since conquest, there have been Welsh