A former City Council aide who was fired after promising to end the political career of a council member even if it took an “assassination,” Viola Plummer, is planning to attend a full council meeting today, defying Speaker Christine Quinn’s effort to keep her from City Hall.

Plummer and the council member she worked for as chief of staff, Charles Barron of Brooklyn, are putting Ms. Quinn in a bind by refusing to stop her from working for Mr. Barron, even though the speaker removed her from the city payroll earlier this month.

“They illegally stopped giving her money, that’s all that happened,” Mr. Barron said yesterday. “She is continuing her regular work.”

He said Plummer comes and goes from his legislative office at 250 Broadway and does her job without any difficulty. Mr. Barron would not say whether he is paying her from his own pocket.

Plummer, who sued Ms. Quinn in federal court for $1 million, had earned $51,575 a year from the city. The case is scheduled to go to trial on September 24.

At today’s meeting, Plummer will likely be seated against the wall of the council chamber, the same spot she occupied during a contentious council meeting in late May when members split largely along racial lines over a proposal to rename a Brooklyn street after a deceased black activist who declared himself to be “anti-white,” Sonny Carson.

It was after that meeting that Plummer threatened Council Member Leroy Comrie of Queens, who did not vote in favor of the proposal.

A few council members called for Plummer to be barred from City Hall, but a City Hall source has noted that it would be impossible for Plummer to be kept from public meetings.

A council member of Queens, Dennis Gallagher, reportedly accused of raping a woman, also is planning to attend today’s council meeting, his chief of staff, Margaret Keta, said yesterday.