HDMS Christianus Sixtus (1733) was a three-deck 90-gun ship-of-the-line, designed to be the flagship of the Danish fleet, and was named after the monarch of the time, King Christian VI The ship's history Designed by K N Benstrup in his role as senior fabrikmester, and built and launched in Copenhagen, the ship was immediately a source of contention as she drew a greater depth (by some six inches) than planned.Topsøe-Jensen This was due to the use of poorly seasoned timber which was thus heavier than calculated. As much of Danish naval strategy was planned for the relatively shallower waters of the Kattegat and Great Belt, compared with the deeper North Sea and Baltic, this could be a problem.
The controversy grew as blame was directed at Benstrup, while other senior officers displayed their animosities and conspired to court-martial the designer.See Knud Nielsen Benstrup for the commission of inquiry and court martial
As an expensive capital ship, Christian Sextus appears never to have actually left harbour, and was fully commissioned only once in her 35 years of life. This was in 1743 when there was a question over succession to the Swedish throne.
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Nielsen E. - Danish Military History website - Major Danish Warships Built at the Holmen Shipyard 1692-1744 Royal Danish Naval Museum - Christianus Sixtus - for original plans click "vis" on this link. Royal Danish Naval Museum - List of Danish Warships Topsøe-Jensen Th.: Knud Benstrup in Danish Biographical Leksikon, 3. edition, Gyldendal 1979-84. accessed 27 August 2019