John Ayer wrote on Thu, Nov 19, 2009 12:45 AM UTC:
The Adjutant is a combination of a bishop (or ferz-rider) and a
dabbabah-rider. It is not lamed orthogonally. The combination of bishop
and lame dabbabah-rider was introduced more than fifty years ago as the
Emperor, but to avoid confusion with Emperor King Chess I reduced it in
rank to a Grand Duke.