That's (a) because German specialises in being long-winded and (b) your nobility were only pseudo-abolished and their titles were converted into their surnames.German noble names seem to be more long winded, but the English ones just sound funnier.
Also I do not think he is a bumbling fool, I am sure it is an intentional act he puts on. He is clearly a self-centred skeeming *&%£ though.
Well, if it's all an act, he should probably be prosecuted for criminal negligence. How it will affect Brexit is anyone's business.