Christian Marriage is between one Man and one or more Women ... and for the same reasons Muslims allow this practice ... with so many men dying in battle, there's was a need to keep all women pregnant with the next generation's "cannon fodder" ... or I guess that would have been "slingshot fodder" ... think Abraham ...
Some circumstances require a man to take a second wife:
5 - If brethren dwell together, and one of them die, and have no child, the wife of the dead shall not marry without unto a stranger: her husband's brother shall go in unto her, and take her to him to wife, and perform the duty of an husband's brother unto her.
6 - And it shall be, that the firstborn which she beareth shall succeed in the name of his brother which is dead, that his name be not put out of Israel.
Deuteronomy Chapter 5
Catherine of Aragon was married first to Author, Prince of Wales ... Henry's petition for divorce was based on her virginity ... Author never "officially" married her ... so Henry was under no obligation to have to marry her ... weak, I agree, but it was intended to offend, intended to be refused, and intended to cause the break in the Church ...
=====
Isn't the age of consent in Russia like 9-years-old or something? ... they better hurry ... there's not that much Iodine-146 there ...