Karl Georg Arsenius was a Swedish artist, who was born in 1855 and died in 1908. He was the brother of John Georg Arsenius who was also an artist.
He was a student at the National Art School of Stockholm from 1870-1880, after which he left for Paris where he studied under Jean-Paul Laurens. From 1886 he based himself in Chantilly, France.
King Oscar II of Sweden was a patron of Arsenius and commissioned many equestrian portraits from the artist.
He won medals for his works in Stockholm in 1885 and at the World Exhibition in Paris in 1889.