Career
Born in Västanfors in Västmanland County, Sweden, he was the son of the merchant Paul Hellsing and Sigrid Hellsing, née Rohloff, whose mother was from the West Indies. He was a prolific writer of children"s literature, particularly known for his rhymes and word plays. He is considered an "outstanding poet" in the field of humour and nonsense writing.
Hellsing was married to actress Yvonne Lombard from 1953 until his death.
Hellsing died at his home in Stockholm, Sweden, of pneumonia on the night of 25 November 2015 surrounded by his family, aged 96.