‘If there be only one son or daughter procreate of that said marriage, to content or pay to the said son or daughter the sum of 8000 merks, and if there be two or more children, to pay to them among them all the sum of 1200 merks money aforesaid, which sums of money provided to the child or children to be procreate in the said marriage in the cases above mentioned, are to be divided and proportioned among them by the