You want a real rabbit hole? Many of Britain's national dailies (eg. Daily Mirror, Daily Express) were bought up by Pergamon Holdings in the 1980s, a publisher that would eventually be known as Trinity Mirror and finally, Reach plc. Reach became a major stakeholder in Daily Mail (DMGT) after their acquisition of Local World in 2015, exerting even more control over British media.

And who owned Pergamon Holdings? None other than Robert Maxwell, triple-agent of the Mossad and father of... checks notes ...child sex trafficker Ghislaine Maxwell.