The sculptor an equestrian statue of King Christian IX in Esbjerg, Denmark.

Carl Johan Bonnesen was born in Aalborg. He trained to become a carpenter for two years before moving to Copenhagen where he was admitted to the Royal Danish Academy of Fine Arts in 1887. There he studied under Theobald Stein and Christian Carl Peters, graduating in 1889. In 1891, at the age of 22, his first sculpture was acquired by tobacco manufacturer Heinrich Hirschsprung and cast in bronze.

His most important patron was Carl Jacobsen, founder of Carlsberg Brewery, who among other pieces, ordered Thor Driving Across the Arch of the Sky (1897). In copper, it stands on top of the Ny Carlsberg Brewhouse. Bonnesen's last great patron was jurist Harald Plum, who had the huge sculpture group Thor at War with the Jötunns (1891) placed on his private island, Thorø. It now stands by the Haustrup Plast factory on the outskirts of Odense. Other notable works include The Period of the Huns (1893), A Bedouin (1897) and A Mounted Chinese Warrior (1900).

Bonnesen had a large and diverse production of statues and statuettes. These include an equestrian statue of King Christian IX which stands on the market place in the centre of Esbjerg, Denmark. Designed in bronze, it was completed in 1899. Other notable works include Adam and Eve at the body of Abel (1900) and Two Lions in the Danish National Gallery as well as several statuettes in The Hirschsprung Collection. Many of Bonnesen's plaster casts have, since 1969, been exhibited in Thingbæk Kalkminer near Rebild Bakker.