Stig Ahlgren was born on January 23, 1910 in Karlskrona, Sweden. He was a writer, known for Morgondagens melodi (1942), Av hjärtans lust (1960) and Biljett till paradiset (1962). He was married to Birgit Tengroth. He died on May 19, 1996 in Ösmo, Sweden.