In 1498 Kildare received a commission to hold a Parliament which was not to last for more than six months. The first Act of this Parliament was to confirm the reversal of the Lord Deputy's attainder, who by a singular anomaly thus exercised viceregal authority, notwithstanding the corruption of his own blood; the last to attaint Lord Barrymore and John Waters for their dealings with Perkin Warbeck. Waters was caught, found guilty by a Westminster jury, and hanged at Tyburn, alongside of the pretender. Lord Barrymore escaped arrest, but was murdered by his brother, the Archdeacon of Cork. Kildare visited and garrisoned Cork, forcing the chief inhabitants to take the oath of allegiance to Henry, and to give bonds for future good behaviour. Of the other Acts passed, the most important was one for the discouragement of Irish habits and weapons. Henceforth dwellers within the Pale were enjoined to wear only English dress, and to wield only 'English artillery,' such as swords, bucklers, pavesses, bows, arrows, bills, crossbows, guns, or such hand weapons--darts and spears being prohibited; and they were to ride in saddles in the English fashion.[70] [Sidenote: Kildare's wars in Ulster. Cannon are used.] It was Kildare's fortune not only to give trouble himself, but to be the progenitor of those who were to give trouble in future. The rebellion of his grandson Thomas Fitzgerald was to cause the eclipse of his house. The descendants of his daughter Alice were to be the chief disturbers of the Elizabethan monarchy in Ireland. She had married Con More O'Neill, who was naturalised by Act of Parliament, and this gave her father a fair excuse for interfering in the affairs of Ulster. Con More had been treacherously killed by his brother Henry in 1493, and the murderer fought for supremacy with his brother Donnell. Henry was at first successful, and Donnell, whom Lady Alice appears to have favoured, could only keep up a desultory opposition. In 1497 a peace or truce was made, but in the following year Tirlough and Con, Lady Alice's two young sons, killed Henry in revenge for their father's death, and invited Kildare to come himself into Ulster. Besides his grandsons, the Lord Deputy had the help of Donnell O'Neill, of Maguire, of O'Donnell, and of most of the neighbouring clans against Henry O'Neill's sons and partisans. Cannon were brought against Dungannon, which soon surrendered. Omagh was afterwards taken, and Donnell was established as chief of Tyrone. Firearms were perhaps first brought to Ireland in 1483, when six muskets, considered a great rarity, were sent from Germany as a present to Kildare, and were borne by his guards more for show than for use. In 1487 an O'Donnell was killed by a cannon or musket shot in a local broil, and in the following year Kildare brought ordnance against Balrath Castle. In 1495, as we have seen, heavy guns were successfully used for the defence of Waterford, and the mention of firearms in the Act of 1498 shows that