https://en.wikipedia.org/wiki/House_of_Braganza-Saxe-Coburg_and_Gotha sounds familiar line?

https://en.wikipedia.org/wiki/House_of_Saxe-Coburg_and_Gotha-Koh%C3%A1ry

https://en.wikipedia.org/wiki/House_of_Saxe-Coburg_and_Gotha

So they married, in which families?

Ferninand II
https://en.wikipedia.org/wiki/Ferdinand_II_of_Portugal
married https://en.wikipedia.org/wiki/Maria_II_of_Portugal they had many children, here's few we can discuss about: Luís I of Portugal, Maria Ana Princess George of Saxony, Antónia Princess of Hohenzolern...

https://en.wikipedia.org/wiki/Lu%C3%ADs_I_of_Portugal married
https://en.wikipedia.org/wiki/Maria_Pia_of_Savoy https://en.wikipedia.org/wiki/House_of_Savoy
had children
https://en.wikipedia.org/wiki/Leopold,_Prince_of_Hohenzollern
https://en.wikipedia.org/wiki/House_of_Hohenzollern