Sir Thomas Henry Liddell, sixth baronet
Married Maria Bradley
1797 Birth of son, Henry Thomas Liddell (later first Earl of Ravensworth)
1808 Rebuilt Ravensworth Castle
One of the Grand Allies, a company of gentlemen, also including the Earl of Strathmore and Mr. Stuart Wortley (afterward Lord Wharncliffe), the lessees of the Killingworth collieries.
1812 Sponsored George Stephenson and supported his construction of his first locomotive.
1821 Created Baron Ravensworth