Noun
A
nobleman
in
England
,
France
,
and
Germany
,
of
a
rank
next
below
that
of
duke
,
but
above
a
count
.
Originally
,
the
marquis
was
an
officer
whose
duty
was
to
guard
the
marches
or
frontiers
of
the
kingdom
.
The
office
has
ceased
,
and
the
name
is
now
a
mere
title
conferred
by
letters patent
or
letters close
.