High Quality Content by WIKIPEDIA articles! Ran Bosilek (Bulgarian: Ран Босилек) (26 October 1886, Gabrovo - 8 October 1958, Sofia), born Gencho Stanchev Negentsov (Bulgarian: Генчо Станчев Негенцов), was a famous Bulgarian author of children`s books. Three years before his death, in 1955, he translated Astrid Lindgren`s children`s book "Karlsson-on-the-Roof" into Bulgarian.