William's troops swept the country, took town after town and castle after castle, until Limerick remained nearly the last stronghold in Irish hands. So William marched against it, at the head of 26,000 men, but the position was a very strong one, and that ablest of Irish generals, Patrick Sarsfield, was in command of the town, and William was beaten back. The next year another great army under General Ginkle marched against the place, first capturing Athlone, and so getting across the river. A terrific attack was concentrated on the fortress guarding the bridge, a breach was made, the fort stormed, and the garrison put to the sword, only about a hundred out of eight hundred escaping across the other branch of the river into Limerick.
Sarsfield still held the town, but his men were disheartened by the loss of the castle. Ginkle, on the other hand, realised that to take the town would be no easy task. A truce was proposed, negotiations began, both sides were eager to end the war, and the result was that the famous Treaty of Limerick was signed by Ginkle and Sarsfield on the third day of October, 1691, on a stone near the County Clare end of the bridge over the Shannon.
There were twelve articles in the treaty, and some of them were kept--the one, for instance, permitting all persons to leave the country who wished to do so, and to take their families and portable goods along; but one was not kept, the most important one, perhaps, which provided that Irish Catholics should enjoy all the religious rights they possessed under Charles II, and that all Irish still in arms, who should immediately submit and take the oath of allegiance, should be secured in the free and undisputed possession of their estates. In a word, the price of peace was to have been a general indemnity and freedom of religious worship. It was not an excessive price, but it was never paid.
The Protestant colonists in Ireland protested in great wrath that they had been betrayed, and the Irish Parliament, which the colonists controlled, after a bitter fight, repudiated the treaty, or, at least, confirmed only so much of it as "consisted with the safety and welfare of his Majesty's subjects in Ireland," and passed a number of new laws aimed at Catholics, disqualifying them from teaching school, from sending their children abroad to be educated, from observing any holy day except those set apart by the Church of Ireland, and many others of the same sort, some of almost insane malignity. All this was, of course, quite unjustifiable, but "King Billy" seems to have been in no way responsible for it. In any event, it happened more than two centuries ago, all these laws have long since been repealed, and it seems absurd to keep their memory so fresh and burning.