Sir William Selby (died 1638) was an English politician who sat in the House of Commons from 1597 to 1601.
In 1611 he succeeded to Ightham Mote and the estates in Kent of his uncle Sir William Selby.
Dame Dorothy and Sir William obtained permission to receive Holy Communion - compulsory at the time - at home, giving rise to suspicion that they favoured Catholicism.
[4] There is a tradition that Dorothy Selby helped reveal the Gunpowder plot, apparently via the medium of needlework as recorded and depicted on her tomb at Ightham.
Selby first heard of the Gunpowder plot on 10 November 1605, while riding from Carlisle to Newcastle.