The names of the series and its characters refer to the movie Gilda, released three years earlier in Spain, and the deadly conflict between the visigoths rulers Hermenegild and Liuvigild who also were family (in this case, father and son).
Hermenegilda is innocent and goofy, and relentlessly pursues a husband, while Leovigilda, more mature, is a skeptical and bitter character, always trying to thwart her little sister.
Leovigilda and Hermenegilda represent sexual frustration and repression of Spanish Francoist regime.
[2] The characters are in eternal conflict and there are plenty of slapstick style shots, as usual in the comics of Bruguera.
In 1955 censorship became tougher in the comics and the adult tone of the series dropped.