Erling Maartmann
Erling Maartmann was a Norwegian football player. He was born in Oslo. He played for the club [F.C. F.C. Lyn Oslo|Lyn Oslo|Lyn], and also for the [Norway national Association football|football team|Norwegian national team]. He competed at the 1912 Summer Olympics in Stockholm. He was Norwegian champion with Lyn in 1908, 1909, 1910 and 1911. His twin brother Rolf Maartmann was also an international football player.