Michał Heydenreich

Michał Jan Heydenreich (Heidenreich), also known under the pseudonym Kruk (19 September 1831, Warsaw, Russian Empire – 9 April 1886, Lviv), was a Polish general who took part in the January Uprising.

He was a member of the underground Polish Circle Officers founded by Zygmunt Sierakowski in St. Petersburg.

After the outbreak of the January Uprising in the summer of 1863, he was appointed head of the martial provinces of Podlasie and Lublin.

In March 1864, Heydenreich was imprisoned in a local jail in Gostyń; he was freed in a daring rescue by a Jewish physician Eliasz Wachtel, an episode described in an article by Polish painter Władysław Stachowski.

[2] During the reorganization of the army by the insurgent Romuald Traugutt, Heydenreich was scheduled to command the first body, but the collapse of the uprising made him flee to France and then to Great Britain.