For those that read or watch ' One Peice '. I beleive I got a break though on how some parts of how some characters were out together.
Going to the beginning of the 'Golden Era of Piracy' was depicted by a black flag. Also known as an 'Old Roger'. If we add a 'G' to that name we have the name of the Pirate King 'Gol D Roger'. During the execution of pirates in old ages they were asked what their last words were. Much like depicted in the anime/manga, of saying a warning to the younger generations and how they will live and die under their Jolly Roger. For all we know Gold Roger could have ment anything when he said he left it in one peice.
Seeing as Roger could have been named after a flag. Aces mother, Rogers lover could have been pulled from the 'jolie Rouge', a red flag. Seeing her name is Rouge.
SUPERNOVA: 'X Drake' was based off Navy Admiral and slaver Francis Drake. Basil Hawkins was based off of Richard Hawkins a Navy commander his son Sir John Hawkins.
SHICHIBUKAI: Bartholomew Kuma may as well been named after Bartholomew Roberts. Who was a captain in the age of pirates.
Then there is Marshall D. Teach. I'm the pirate age there was a man known as Edward Teach. Also known as Blackbeard much like the man in the anime/manga. Also like the man in the show, this man also had few members in real life.
RANDOM: Bellamy from the anime/manga was named after "Black Sam" Bellamy.