Now, as for the naming of the different drawings, you need to keep in mind one important thing; we do not know who drew those, nore do we know when.... In that respect, two drawings carrying different file names with the same illustration may very well simply depend on who gave it the file name while keepeing track of the works' inventory and during which period.......There are many mistakes in the filing of drawings and misinterpretations of the actual artists who drew them. One case being the museum's model called the Louis XV, and that same ship on a drawing being called the Royal Louis.....The same is true with mistakes on the 1668 Royal Louis drawings being written Monarque on them. In the case of your example, the 1670 Soleil Royal was registered initially when Colbert and Duquesne decided to build the 4four royal ships as a 120 canon ship, which it never became. The labeling however remained throughout time, and it's only when you find all the information about the evolution of the initial constructions and set up that you realize what they really were. The Tanneron ship is a very beautiful exercise in 1670 Soleil Royal stern ship decor, but the hull shape, and the bow's decor, aswell as the top gunport row are not from the ship; The front and the top gunport rows represent a style more related to the beginnig of the 1680's and beyond; the same is true for the brillant as far as the top gunport row; now, the Brillant's career was so long (25 years) that it must have ha some refit during its time; it is quite possible that those top ports were modified with the new style as with all the ships of that 1680's period; the same is true with the decor. It could be that the initial decor ( with the curtains) was in face the right decor, but by the time of the first refit, it was modified because of the rott in the wood carving, or some other reason; Tanneron's Brillant could also be any of the three first ships which carried that name in that period....Initially from 1671 to 1678; the name was tranfered to another ship from 1678 to 1687; and to a new build in 1688.....up to 1698.....All those ships were very similar in their appearance and construction....