Siegbert Tarrasch, German chess player and theoretician (d. 1934)

Siegbert Tarrasch (German: [ˈziːɡbɐt ˈtaraʃ]; 5 March 1862 – 17 February 1934) was a German chess player, considered to have been among the strongest ones, and one of the most influential chess theoreticians of the late 19th and early 20th century.