Ottokar Landwehr Pragenau ( 1905 - ) is an Austrian painter. Ottokar Landwehr Pragenau s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 629.92 USD for Yachthafen auf griechischer Insel mit ankernden Segelbooten und kleinem Sportdampfer in 2008