Staff has now informed me of what a Kardashian is.
I'm only left with more questions
The mayoral role became Lord Mayor in 1354.
I was, therefore, confused by your clue for Ken Livingston. He may have been the first Mayor of Greater London but not the first mayor of London.
Btw., Zuse and Zeus are pronounced differently. Zuse sound more like "Tsoo-sah" to american ears.