Cygnus A also shows a second hotspot (Galaxy Anchor Black Hole: GABH) at the right side, (A) which is assumed to be the tell tale of a merger galaxy with comparable dual GABHs ( hotspots) of the same scale.
Consequently also a second GABH could be found hidden at the left GABH.( B)
see: http://strangesounds.org/2017/01/mysterious-object-discovered-galaxy-cygnus-a.html