No. Despite biblical examples to the contrary the Christians as early as the 1400s (if not earlier) has very strong feelings about marrying anybody more closely related than a first cousin (and even then it was questionable). You may recall that King Henry VIII of England was so abhorred with the thought of having married his brother's wife Catherine of Aragon that he founded a whole new church to get himself a divorce.
It was never illegal in most of the world
This is legal for a man to marry his widow's sister in France.
It is legal for a man in France to marry his widow's sister. These people are not related and there is no problem with marrying.
If you like. You have no blood relation.
"Is it legal for a man in Scotland to marry his widow's sister?" His widows sister surely mean he's dead or his widow wouldn't be his widow!!, However if he had faked his death so he could then run off with and then marry his widows sister then this would be bigamy which is illegal in UK law.
no a dead man cannot anymore get marry
It is not illegal for a man not to do that. ...but that man would be dead, if she was a widow.
Except that he has to be dead to have a widow, it might be legal.(see related question)
No. Since the woman is his widow, he is dead. Dead men cannot marry anyone.
If it's his widow...he's dead; he ain't marrying anybody!
yes it because they can do what ever
You can marry your sister in law in Georgia. The law only addresses marrying close relatives and your wife's sister would not fall into that category.
Assuming that by "brother-in-law" you are referring to your deceased's husband brother, yes, it is perfectly permissible.