Later record-makers dubbed them "provinces", in imitation of Roman provinces. In the Norman period, the historic fifths of Leinster and Meath gradually merged, mainly due to the impact of the Pale, which straddled both, thereby forming the present-day province of Leinster. The use of provinces as divisions of political power was supplanted by the system of counties after the Norman invasion. In modern times clusters of counties have been attributed to certain provinces but these clusters have no legal status. They are today seen mainly in a sporting context, as Ireland's four professional rugby teams play under the names of the provinces, and the Gaelic Athletic Association has separate Provincial councils and Provincial championships. With the arrival of Cambro-Norman knights in 1169, the Norman invasion of Ireland commenced. This was followed in 1172 by the invasion of King Henry II of England, commencing English royal involvement. After his intervention in Ireland, Henry II effectively divided the English colony into liberties also known as lordships. These were effectively palatine counties and differed from ordinary counties in that they were disjoined from the crown and that whoever they were granted to essentially had the same authority as the king and that the king's writ had no effect except a writ of error. This covered all land within the county that was not church land. The reasons for the creating of such powerful entities in Ireland was due to the lack of authority the English crown had there. The same process occurred after the Norman conquest of England where despite there being a strong central government, county palatines were needed in border areas with Wales and Scotland. In Ireland this meant that the land was divided and granted to Richard de Clare and his followers who became lords (and sometimes called earls), with the only land which the English crown had any direct control over being the sea-coast towns and territories immediately adjacent. Of Henry II's grants, at least three of them—Leinster to Richard de Clare; Meath to Walter de Lacy; Ulster to John de Courcy—were equivalent to palatine counties in their bestowing of royal jurisdiction to the grantees. Other grants include the liberties of Connaught and Tipperary. These initial lordships were later subdivided into smaller "liberties", which appear to have enjoyed the same privileges as their predecessors. The division of Leinster and Munster into smaller counties is commonly attributed to King John, mostly due to lack of prior documentary evidence, which has been destroyed. However, they may have had an earlier origin.