MoP Marriage

Hi Guys.
I just installed Master of The puppets and have read about marriage between heroes.
I have aquired 2 wedding rings, but how do i use Them?
I can’t find any information about getting married In The game :frowning:

Oh bonus question!
How do you upgrade The dragon younglings?

You have manual in Heroes 3 MoP/Data/MoP/manual.pdf (but only in russian). It was never translated.