The emperor wants to consult the Roman senators.
'Consulere'---to consult.
The root word of "counselor" is "counsel," which comes from the Old French word "conseil" meaning advice or guidance.
princeps
Princeps.
Princeps, imperator.
Princeps (plural: principes) is a Latin word meaning "first in time or order; the first, chief.
ego princeps mundi
Princeps magnus.
princeps (this literally means emperor - there were no princes in the roman empire!)
Princess is the feminine form of prince (from Latin princeps, meaning principal citizen).
Although there is no word for "Chancellor," you could use "Princeps | Princepis" (3rd) which means "Emperor or Leader."
PS appears only at the end of the Latin PRINCEPS or misread as PRINCE PS. Ignore the PS it means prince and can be seen on commemorative coins eg. 1972 crown 25th anniverary of the wedding of Elizabeth (Regina) and Philip (Princeps).