ヤーコブ・ヨルダーンスの出身階級は？
Jānis Judiņš (; , trans. "Yan Yudin", also known in Russian as Я́нис Ю́диньш, trans. "Yanis Yudinsh", January 17, 1884, in Liezēre parish - August 12, 1918) was a Red Latvian Riflemen commander, a Red hero of the Russian Civil War. As a Latvian Rifleman Jānis Judiņš participated in the First World War and Russian Civil War. Since April 1918 he was a commander of the Third Latvian Rifle Brigade (). In August 1918, Czech Legion and KomUch People's Army pressed the Red Army from Kazan. On 8 August 1918, Judeņš with his staff arrived at the Krasnaya Gorka railway
Wealth