The Planetary Grand Duchy of Manticore was one of the highest-ranking peerages in the Star Kingdom of Manticore.[1]

In the 1910s PD, the peerage was held by Lord Theodore Harper.

The Grand Duke of Manticore once attended a social gathering where Honor Harrington was also present. As a Grayson steadholder, she was outranked only by the Grand Duke and Queen Elizabeth herself. (HH5)

Known Dukes Edit

  • Lord Theodore Harper, Planetary Grand Duke of Manticore


  1. According to Harrington, only 3 Manticoran peerages outranked her; the Grand Duchy of Manticore, Grand Duchy of Gryphon, and Grand Duchy of Sphinx.

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