noun, plural al·der·man·ries.
Examples from the Web for aldermanry
He resigned his aldermanry in 1502, on the pretext of poverty, apparently in order to avoid the expense of mayoralty.
He purchased the Aldermanry of this ward, as by the abstract of deeds, which I have read thereof, may appear.The Survey of London|John Stow
Under the circumstances it was deemed best to keep the aldermanry open until Wilkes regained his liberty.London and the Kingdom - Volume III|Reginald R. Sharpe