Captain Haddock home, Marlinspike Hall (or "Moulinsart" in the original French). Harry Thompson, author of "Tintin: Hergé and his creation", writes that the introduction of this large and luxurious country house was "to provide a suitable ancestral home for Tintin and himself to move into." To achieve this in terms of the plot, Hergé also details Haddock's ancestry, something Thompson regards as distinctive: "Haddock is the only regular character whose relatives turn up in the Tintin stories at all (if one discounts Jolyon Wagg and his dreadful family)." As Haddock's role grew, Hergé expanded his character, basing him upon aspects of friends,
Captain Haddock the time of their last completed and published adventure, "Tintin and the Picaros", Haddock had become such an important figure that he dominates much of the story. Captain (Archibald) Haddock's ancestor, Sir Francis Haddock, is hinted at being the illegitimate son of the French Sun King (Louis XIV), a possible reference to Hergé's own family history— Hergé liked to believe that his father was the illegitimate son of the Belgian king Leopold II. As Hergé was considering names for his new character, he asked his wife, Germaine, what she had cooked for dinner. She told him, “a sad English fish—haddock.”