husband of seperated wife dies

A wife without self respect and dignity would surely do that.She gives an ample evidence of her oppertunism.God save men from such woman who have nothing else but self pity.

If she is legally seperated then she cannot claim anything.  If the properties given to the parents by way of will by the son were his self acquired properties then also she cannot claim.  Will is valid.

you have not mentioned clearly whether the property was self acquired or ancestral and also whether the divorced couple have children born during their wed lock.

If the property was ancestral and they have children, then the children of the divorced couple have got a right in the property.

if the property was self acquired then husband can dispose of his prperty as per his will.

If we assume

The child, the couple had is during their wedlock.

The property is self acquired

The property is willed by  husband's parents or brother/sister

Divorce has not yet happened, case pending in the court or divorce may have had happened

Now 

If  husband dispose of his property as per his wish, where is the right of his minor child who has a long way to go to build his/her career? 

Selfstudying lawstudent I hope you would not mind my adding a few more queries to your main query. Since they are related hypothetical situation, I did not want to start a new thread. 

"he has willed his property to his parents"

he has every right to will the self earned property to anybody, but not ancestrial property.

ignore the advices of ms renuka, these are imaginary, not based on law.

"can the wife stake her claim."

SHE CAN CLAIM ANCESTRIAL PROPERTY ONLY.

wat if this wife hatches a conspiracy to get her husband murdered after separation thru his relative who is a criminal. is she still entitled to property?

I have not  given any advice, have I ?

I have just asked some queries myself on some possibilities. And I will be interested in replies from qualified legal professionals. 

I am really amused! Queries look like advise...and that non existent advise should be ignored. 

No issues at all!

Arup, do not forget that  u r nothing here at LCI except 1 out of 85320 members. 

TO COVER SUCH incident of a criminal bent minded female , most good lawyers prepare a will of their client at time of first motion or even before that.

ya agree , this is always done where girl's motives for taking MCD out of blue from a contested divorce are suspected.also if her family background is bad husband is always advised to preapre a will to meet any such eventuaity.

Sony very well said.  for those who are unscrupulous wives, its better they should write a will , well in advance to safeguard his family from financial crisis.

sub SIFF experts advisory for HUsbands under process of MCD

SIFF experts have advised husbands waiting for 2nd motion of Mutual Consent Divorce to write their will to a relative or friend in case of their death.
there are some cases reported where some wives attacked husbands to become a successor.