He served as Whig Member of Parliament, wrote the memoirs of Maria Fitzherbert, and was a leading Roman Catholic figure during the 19th century.

During his tenure, he played an important role in the negotiations for public funds for Roman Catholic schools.

Langdale had been a close friend of Maria Fitzherbert during their youth; there was a family connection through her first husband George Weld, whose niece married his eldest brother William.

the Prince of Wales, afterwards King George IV at the request of his brother, Lord Stourton, one of the trustees named in Fitzherbert's will.

[2] He married twice: He died in Mayfair, London, in 1868 and was buried near his seat, Houghton Hall, Yorkshire.