Their eldest son, Robert (1756-1835), graduated as a barrister from the King's Inns . He became an MP for Knocktopher (1783-1796), where both father and son sat together in Houses of Parliament. In 1782 he married an heiress, Anne Boyle, a granddaughter of the Archbishop of Armagh . In 1796 he too became a Revenue Commissioner. After Sir Hercules died in 1811, Robert became the 2nd Baronet, Sir Robert Langrishe. He was heavily involved in theatre. And after he died in 1835 his second son, Hercules Richard (1782–1862), who had entered the Church, became the 3rd Baronet, Rev Sir Hercules Langrishe. They had eight children with his wife, Maria Cottingham. Sir James Langrishe (1823-1910) as 4th Baronet succeeded Rev Sir Hercules when he died in 1862. He married twice, became Lt Col. in the Army and High Sheriff of County Kilkenny 1866. They had one son, Hercules, and five daughters. Hercules Robert (‘Herky’, 1859-1943) graduated from Trinity College, Dublin in 1753 and succeeded Robert when he died in 1770 as Sir Hercules Robert Langrishe the 5th Baronet. He was by all accounts a dashing young aristocrat, who developed powerful connections to the King Edward VII. Famously in 1904, Hercules invited King Edward VII , whom he knew well, and Queen Alexandra to visit Knocktopher Abbey. The invitation was accepted but it backfired over a prank and the visit never happened. He was High Sheriff in 1891 and reached Deputy Lieutenant in Army and served in Russia. He married Lady Helen Hume Dick and they had two sons.