The history of the Myddelton family is one of national interest. There were four Sir Thomas Myddeltons at Chirk Castle, the two former knights, and the two latter baronets. The first Sir Thomas was Lord Mayor of London when his brother, the celebrated Hugh Myddelton, was knighted for bringing the new river into the Metropolis. The second Sir Thomas served in Parliament for the county of Denbigh, and took arms in its support when he was fifty-seven years old. For his services at Oswestry, Montgomery, and Holt, in 1643–4, he received the thanks of Parliament through the Speaker. When he engaged in the service of the Parliament his own castle became garrisoned for the king, and the veteran knight was compelled to besiege it with all his force. It remained, however, in the hands of the royalists till February 1646, when Sir John Watts, the governor, quitted it, and was captured, with his men, at Churchstoke, Montgomeryshire. Sir Thomas Myddelton, some ten years afterwards, abandoned the parliamentary cause, and took up arms with Sir George Booth, a Cheshire general, to restore the monarchy, and place Charles II. on the throne. The royalists were few in number, and easily defeated, by Lambert, who retook Chester, and made Sir George Booth prisoner. He then laid siege to Chirk Castle, which, after a sharp resistance, was surrendered by Sir Thomas Myddelton, who deemed it useless, he said, to oppose the whole kingdom. A resolution was passed in parliament, authorizing Lambert to demolish the Castle; but, Cromwell dying the same year, the threatened destruction did not take place. The damage and loss sustained at Chirk Castle, during the usurpation, are said to have amounted to £130,000. Such was the reward which the veteran Sir Thomas Myddelton received for his patriotism. His fate resembled that of his co-patriot, Major-General Mytton, but was somewhat more disastrous.