Born in Copenhagen, Haslund attended the Royal Danish Academy of Fine Arts from 1858 to 1864. In addition he studied privately under
Wilhelm Marstrand,
Jørgen Roed and
P.C. Skovgaard and also spent some time working in
Vilhelm Kyhn's studio (c. 1866). and in the early 1890s, he painted portraits of those working at the Carlsberg brewery in Copenhagen. He exhibited at the
Charlottenborg Spring Exhibition from 1865 to 1916. Haslund was also an illustrator; together with
Pietro Krohn, he illustrated Johan Krohn's
Peters Jul (1866). He also ran a painting school which was popular with women. ==Awards==