So, I knew that Kyriakos Mitsoakis is related to the PM with the same surname (his dad Konstantinos Mitsoakis, PM 1990-1993), but I found out he's also the brother of Dora Bakoyannis (former Mayor of Athens and Foreign Minister) and the uncle of Kostas Bakoyannis (the current Mayor of Athens). Which is weird, but then Greek politics is infamous for being very Happy Families. And then... that his great-grand-uncle was Eleftherios Venizelos, arguably the founder of modern Greece and certainly the founder of the Venizelist tradition today represented by Pasok and Syriza. Like, this is Romanov levels of inbreeding. Imagine if Rishi Sunak's sister was, I don't know, Theresa May, his nephew was Sadiq Khan, his father was John Major and his distant uncle was David Lloyd George.
It actually goes way beyond that. Since the restoration of democracy in 1974, throwing out temporary placeholders, there have been 9 Greek Prime Ministers who have won at least one election. These include a Papandreou father-and-son duo (Andreas in the 1980s and 1990s and Georgios in the 2010s; note that Andreas's father Georgios was also PM in the 1960s), a Mitsotakis father-and-son duo (Konstantinos in the 1990s and Kyriakos in the 2010s; they are descended from the earlier Venizelos dynasty which also produced multiple PMs), and a Karamanlis uncle-and-nephew duo (with the same name, Konstantinos). Only three out of nine post-1974 Greek Prime Ministers -- Simitis, Samaras, and Tsipras -- were
not from prime ministerial dynasties.