Arnaldo Visconti was probably the greatest pulp writer in the Spanish Language.
He was really Pedro Víctor Debrigode Dugi (1914-1982), but he was also known as P.V.Debrigaw, Arnold Briggs, Geo Marvik, Peter Briggs, V. Debrigaw, and Vic Peterson.
His production, published between the 1940s and the early 1970s, is simply enormous – consisting mostly of historical adventures: westerns, pirate yarns, exotic adventures and swashbucklers.
And while I am trying to get a fix on some of his works to offer an informed opinion, here’s a very small gallery of some of his covers.

Visconti – or his illustrator – seemed to have a Tyrone Power fetish.
And yes, as you can see, his works were also translated in German.