From Wikipedia http://en.wikipedia.org/wiki/Palace_Software:
Palace Software was a British video game publisher during the 1980s based in London, England. It was notable for the Barbarian and Cauldron series of games for 8-bit home computer platforms, in particular the ZX Spectrum, Amstrad CPC and Commodore 64. It caused some controversy with its advertisements in computer magazines, particularly for Barbarian II: The Dungeon of Drax which featured Page Three girl Maria Whittaker as a scantily-clad female warrior.
Palace's developers included programmer Steve Brown and musician Richard Joseph.
In 1991, Palace Software's parent company, Palace Group, sold it to Titus Software.