Earl Grey tea since at least the 1820s. In 1837 there is a record of court proceedings against Brocksop & Co. who were found to have supplied tea "artificially scented, and, drugged with bergamot in this country." A "Grey's Tea" is known from the 1850s, but the first known published references to an "Earl Grey" tea are advertisements by Charlton & Co. of Jermyn Street in London in the 1880s. The Earl Grey blend, or "Earl Grey's Mixture", is assumed to be named after Charles Grey, 2nd Earl Grey, British Prime Minister in the 1830s and author of the Reform Bill of 1832.
Prime Minister of the United Kingdom himself denied it. In 1741, during the attack that led to Walpole's downfall, Samuel Sandys declared that "According to our Constitution we can have no sole and prime minister". In his defence, Walpole said "I unequivocally deny that I am sole or Prime Minister and that to my influence and direction all the affairs of government must be attributed". George Grenville, Prime Minister in the 1760s, said it was "an odious title" and never used it. Lord North, the reluctant head of the King's Government during the American War of Independence, "would never suffer himself to be called Prime Minister,