The song is about Gustav II Adolf, king of Sweden from 1611 to 1632 and the title refers to the nickname he had in those days, which in turn referred to him being the incarnation of the lion on the coat of arms of the House of Vase, the royalty that ruled Sweden.
The song is about Gustav II Adolf, king of Sweden from 1611 to 1632 and the title refers to the nickname he had in those days, which in turn referred to him being the incarnation of the lion on the coat of arms of the House of Vase, the royalty that ruled Sweden.