Giulio Cesare Polerio (c. 1555,[1] – c. 1610; reconstruction of places and dates by Adriano Chicco[2][3][4]) was an Italian chess theoretician and player.
Name affixes used for him are l'Apruzzese,[5] Giu[o]lio Cesare da Lanciano (Salvio/Walker[6]), and Lancianese,[7] because he was born in Lanciano, a town in the province of Chieti of the region Abruzzo of Italy. He died in Rome.
^Attempt of reconstruction of birth date also performed by Baffioni, 1993, See p. 18 "I Polerio a Lanciano,...", problem "'Libri baptizatorium, matrimoniorum, mortuorum'"
^SANVITO, ALESSANDRO: I codici scacchistici di Giulio Cesare Polerio e Gioacchino Greco, Messaggerie Scacchistiche, ISBN88-901525-8-3, Brescia, 2005
^Polerio's last sign of life was in 1606, see: MONTÉ, PETER JOANNES: The Classical Era of Modern Chess, McFarland & Company, Inc., Publishers, ISBN978-0-7864-6688-7, Jefferson, North Carolina, 2014), page 273
^BAFFIONI, PROF. GIOVANNI: Giulio Cesare Polerio, l’Apruzzese, Maestro di Scacchi Europeo (XVI–XVII), Litografia Botolini srl, Lanciano, 1995
^BAFFIONI, PROF. GIOVANNI: Giulio Cesare Polerio Lancianese Maestro di Scacchi (XVI–XVII) Regione Abruzzo, Centro Servizi Culturali, Lanciano, 1993 or Polerio: codex (c. 1560–1580) in the Bibliothèque Nationale at Paris, Manuscrits italiens no 955 (2669 suppl.) 81 leaves : Questo libro e di Giulio Cesare Polerio Lancianese