The origin of the title Knight of Glin, or Knight of the Valley, seems not to be accurately known, but the designation has been recorded as in use during the reign of Henry III. The Knights of Glin, also called the Black Knights, belong to the great Geraldine family, and owed a certain allegiance to the Earls of Desmond, which is described as follows: “Divers customs of meat and drink, together with rising of men at the Earl’s calling to the number of 60 kearne.” The housing and feeding of some of the Earl’s men were also included. Glin is a small market town and seaport in the Barony of Shanid, in the County Limerick, at the junction of a rivulet with the Shannon, twenty-six miles west by south of Limerick City. Of the ancient fortress situated in the town, nothing now remains but the keep. It measures 38 feet by 35 externally, and the walls are 8 feet in thickness. It is at present about 40 feet in height, but was at one time crowned by a turret in the eastern corner. The courtyard walls were 102 feet in length and 92 in breadth. The chief entrance, to the north, was defended by a semicircular outwork. The great hall was situated on the western side of the courtyard, while the keep was in the south-west corner. The two eastern angles were defended by small towers. A moat surrounded the castle filled with water from the Shannon tributary. The Knight of Glin was a very important chieftain in Limerick, maintaining an ordinary force of ten horsemen and a hundred and forty foot soldiers. During the Desmond wars he shared the fortunes of the Earl, and in 1569 both the Knight and the son were attainted, the latter being executed. The estates were, however, very shortly afterwards restored, and in the rebellion of the Northern Earls and the “Sugan Earl” of Desmond, the Knight of Glin was again amongst the disaffected. In the summer of 1600 Sir George Carew started on an expedition to the west to restore peace in that quarter. He had with him a force of one thousand five hundred men, and was accompanied by the Earl of Thomond. The army marched through Kerry to Askeaton, where there was a halt for four days awaiting provisions, which had been sent by water from Limerick. On the 4th of July they marched twelve miles to Ballintare, the enemy moving in front within view. The next morning’s march brought them before Glin Castle, the rebels still offering no opposition. The Four Masters describe the route taken as having been from Limerick along the northern bank of the Shannon through Clare, the troops ferrying themselves across the river at Glin, but it is most likely that Sir George Carew’s biographer gives the correct line of march. Captain Gawin Harvey’s ship, with the ordnance on board, had been anchored in the Shannon for fourteen days awaiting their arrival, and the guns were at once unshipped upon the arrival of the troops.