The publicity-seeking Staten Island lawyer who once asked a judge to let him settle a legal battle with another attorney using “trial by combat” is now suing “bitter’’ former clients and people he claims he had business dealings with — for $10 million.

Richard Luthmann posed with a sword and a shield in 2015, in a stunt that failed to get the case moved to knight court.

He’s now being investigated for allegedly fabricating phony Facebook pages for politicians he dislikes.

In his latest legal skirmish, he filed court papers Saturday that take a page from President Trump’s book.

He put nasty adjectives in front of the names of each defendant he’s suing.

One of them is Leticia Remauro, who heads a public-relations firm called the Von Agency.

His suit calls her “Treacherous Leticia Remauro’’ and her firm “Von-Con.’’

Remauro says neither she nor her firm ever dealt with him.

He also identifies two former clients, who are related, as “Deputy Dog George’’ and “Wannabe George.’’