It was first mentioned in a chronicle in 1152 under the name of Olgov (a possessive adjective from an old Russian name Olg, or Oleg).[citation needed] Lgov was razed to the ground by the Mongols. In 1669, Lgov Monastery was founded on the spot of the former town, which would be closed down in 1764. The monastic sloboda was transformed into the town of Lgov in 1779.[citation needed] During World War II, Lgov was occupied by German troops from 27 October 1941 to 3 March 1943.
On September 18, 2022, the town was heavily damaged by a significant F2/T5 tornado. Over 200 structures were damaged or destroyed as a result of this strong wedge tornado. Many residential structures had roofs torn off, and some sustained collapse of their exterior walls, but most of these structures were poorly-built homes. Numerous trees were downed, and high-voltage power lines were also damaged or destroyed.[9][10][11][12][13][14]
Губернатор Курской области. Постановление №489 от 6 ноября 2008 г. «Об утверждении реестра административно-территориальных единиц населённых пунктов Курской области», в ред. Постановления №26-пг от 29 января 2013 г. «О внесении изменений и дополнений в Постановление Губернатора Курской области от 06.11.2008 №489 "Об утверждении реестра административно-территориальных единиц населённых пунктов Курской области"». Вступил в силу 6 ноября 2008 г. (Governor of Kursk Oblast. Resolution #489 of November 6, 2008 On the Adoption of the Registry of the Administrative-Territorial Units and Inhabited Localities of Kursk Oblast, as amended by the Resolution #26-pg of January 29, 2013 On Amending and Supplementing Resolution #489 of the Governor of Kursk Oblast of November 6, 2008 "On the Adoption of the Registry of the Administrative-Territorial Units and Inhabited Localities of Kursk Oblast". Effective as of November 6, 2008.).
Курская областная Дума. Закон №48-ЗКО от 21 октября 2004 г. «О муниципальных образованиях Курской области», в ред. Закона №65-ЗКО от 23 августа 2011 г. «О внесении изменений и дополнений в Закон Курской области "О границах муниципальных образований Курской области", Закон Курской области "О муниципальных образованиях Курской области"». Вступил в силу со дня официального опубликования. Опубликован: "Курская правда", №214, 30 октября 2004 г. (Kursk Oblast Duma. Law #48-ZKO of October 21, 2004 On the Municipal Formations of Kursk Oblast, as amended by the Law #65-ZKO of August 23, 2011 On Amending and Supplementing the Law of Kursk Oblast "On the Borders of the Municipal Formations of Kursk Oblast", Law of Kursk Oblast "On the Municipal Formations of Kursk Oblast". Effective as of the day of the official publication.).