Otto Löwenborg
Otto von Löwenborg was a Swedish chess master.
In January 1912, he won a simultaneous exhibition game against Frank James Marshall in Stockholm. He took 3rd at Stockholm 1913, took 9th at Jungbunzlau 1913, tied for 2nd–4th at Copenhagen 1916, took 8th at Stockholm 1916, took 6th at Kristiania 1917, shared 1st with Anton Olson and won a match against him at Stockholm 1917, and finally lost a match for the Swedish Champion title to Nyholm at Stockholm 1917.
He tied for 7–8th at Göteborg 1918, tied for 4–6th at Göteborg 1919, and tied for 4–8th at Copenhagen 1924.