Domitian become Roman Emperor today. Last of The Flavian Dynasty, Domitian – while restructuring Roman Coinage within The Empire, was considered a Tyrant by his Subjects. He sought to control Roman Morality and even Public thought. A persecutor of early Christians, his “memory” (upon his death) – was officially declared “void” by The Roman Senate.
To “Cable” Arms or a Crest, simply means the added imagery of Ropes or Chains added throughout one's Coat of Arms. Meanings varied by Title, Deed and of course – Country. Cabling was popular in the 15th Century.