Background
Aage Bertelsen was born in Næstved where his father, the painter Rudolf Bertelsen, was an art teacher at the Herlufsholm Bording School. From an early age he was taught to draw and paint by his father as well as by the painter Los Angeles
Education
He later attended Zahrtmann"s art school from 1892-1896 while working for Landvæsenet (1894-1897).
Career
He has also worked for Kähler Keramik in Næstved. Ring who was a close friend of the family. Zahrtmann accompanied him on a journey to Italy in 1897 and in 1899-1900 he visited Germany and France.
In 1906-1908, Bertelsen participated in the Denmark Expedition to northeastern Greenland.
In 1908, an exhibition with Bertelsen"s and Achton Friis" works from the expedition was featured first at Den Frie Udstilling in Copenhagen and later in Aarhus and Odense. In 1909 it moved on to Berlin and other German cities and in 19010 it was exhibited by the Royal Geographical Society in London.
Later exhibitions of their works from the expedition include an exhibition at the Rudolph Tegner Museum in 2011. A comprehensive excreact from Friis" and Bertelsen"s diaries was published in 2013.
Back in Denmark, he settled in Birkerød as a landscape painter.
He uis buried at Birkerød Cemetery.
Membership
He was a member of the Denmark Expedition to North-East Greenland. Bertelsen exhibited at Charlottenborg"s Spring Exhibition from 1899-1903 and at Kleis’ exhibition in 1901 and was a member of Den Frie Udstilling from 1904.