Brinley ("Bryn") Newton-John was born in the New Market Tavern in the Hayes, Cardiff where his mum worked behind the bar.
He went to Cambridge, where he married Nobel Physics laureate Max Born's daughter with whom he had a daughter called Olivia Newton John, was an MI5 officer on the Enigma project at Bletchley Park and the officer who took Rudolph Hess into custody during World War II. The family emigrated in 1954 to Melbourne, Australia where he worked as a Professor of German and became the Master of Ormond College at the University of Melbourne.
That is quite a story arc. I must catch up with this BBC show.