He lost both parents at the age of nine and was placed an orphanage (Det Kongelige Vajsenhus), which also provided an elementary education.
After his confirmation, he began taking classes in ornamental painting at the Royal Danish Academy of Fine Arts.
By 1837, the Academy was willing to recommend him for funding by the "Fonden ad usus publicos", but he chose to wait.
[1] In 1863, he painted a landscape that featured Bernstorff Palace as a bridal gift for Princess Alexandra upon her marriage to the then Princes of Wales, later King Edward VII of the United Kingdom.
His daughter, Hanne Joachimine Unna [da], was a landscape painter who spent much of her life in South America.