If a man dies from a woman who inherited his estate according to the legal inheritance, and does not terminate her marriage with another person after her right to inherit from her first husband by consensus of the Muslims.
The wife has a share of the estate of her deceased husband; whether she married after him or did not marry
﴿ لِلرِّجَالِ نَصِيبٌ مِمَّا تَرَكَ الْوَالِدَانِ وَالْأَقْرَبُونَ
وَلِلنِّسَاءِ نَصِيبٌ مِمَّا تَرَكَ الْوَالِدَانِ وَالْأَقْرَبُونَ
مِمَّا قَلَّ مِنْهُ أَوْ كَثُرَ نَصِيباً مَفْرُوضاً ﴾
women should marry after her husband death if she has lust and can't control her self even if the husband say to her she should not marry,or if she has children and she can not take care of them