The local council voted last month to turn to court over the impeachment of Titov, a councilor representing the Union of Russians in Lithuania, who had accused Lithuanian partisan commander Adolfas Ramanauskas-Vanagas of killing innocent civilians.
The Council believes Titov's public degrading of Ramanauskas-Vanagas and his memory through spreading false information about this person runs counter to the Constitution and breaches the ethical principles of conduct of state politicians.
Such action by the councilor might constitute a breach of a councilor's oath, the local authorities believe.
The court is set to hear the case in November.
Impeachment proceedings against Titov were launched after he publicly stated that Ramanauskas-Vanagas killed innocent civilians.
Titov says his statements were based on a Soviet court's information and that he feels persecuted for his opinion.
Historians say, however, any research of the anti-Soviet resistance in Lithuania cannot be based on Soviet information only as KGB files are full of false information aimed at smearing partisans.
Lithuanian prosecutors are carrying out a pre-trial investigation regarding Titov's statements.