Note: There are other authors with the same name: Royo

• Author: Royo (I) Author Record # 371774
• Language: Spanish
• Note: It still has to be decided if the respective pieces of art were created by Luis Royo or Romulo Royo

• John Sinclair, #809: Das Schlangenkreuz [German] (1994)
• Maddrax, #25: New York, New York! [German] (2001)