Carolus Rex is the seventh studio album by Swedish heavy metal band Sabaton. It was released with both English/mixed and Swedish vocals. It would also be the last album to feature guitarists Oskar Montelius and Rikard Sundén, drummer Daniel Mullback and keyboardist Daniel Mÿhr. It was produced by Peter Tägtgren in Abyss Studios. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.