Not quite the same thing, but… Bushes. Milibands (tbf, the first one was a Marxist). Kennedies. Roosevelts (tbf, one wasn’t bad). Asquiths/Bonham Carter’s. Churchills/Spencers. Johnsons. Rothschilds. Rockefeller’s. Saxe-Coburgs. Gothas. Hapsburgs. It’s a long list.
Queen Elizabeth II
Not quite the same thing, but… Bushes. Milibands (tbf, the first one was a Marxist). Kennedies. Roosevelts (tbf, one wasn’t bad). Asquiths/Bonham Carter’s. Churchills/Spencers. Johnsons. Rothschilds. Rockefeller’s. Saxe-Coburgs. Gothas. Hapsburgs. It’s a long list.
Every USA president ever
Frankie Boyle joked: the Europeans are backwards for accepting monarchist dynasties; but in the USA, the people vote for it.
Literally vote for same thing every 4 years or change ruler for another same one or worse than previous every few decades.