Lionel Adalvert Bagration Felix Kieseritzky (1806-1853) was a former mathematics teacher in Estonia who became a chess regular at the Cafe de la Regence in Paris and was of International Master strength. He gave chess lessons at the Cafe for five francs an hour. He is known for an off-hand game he lost against Adolf anderssen in what is knowns as The Immortal Game. He was not well liked. He died penniless at a charity hospital for the insane, suffering from mental illness, and was buried in a pauper’s grave. Only one person came to his funeral - a waiter at the Cafe. The Kieseritzky Gambit (1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5) is named after him.