Is it permissible for a grandmother to make a will in favour of her grandchildren when her sons are still alive?

What Is the Share of Daughters in Inheritance?

Division of inheritance among a mother, father and four brothers

Division of the estate of a man who died and left behind a wife, mother, brother and sister

The estate of the deceased who left behind a wife, sons, sisters and grandchildren

His father killed his mother; can he take the inheritance from him on the basis that it is diyah (blood money)?

Writing a will to state that the estate should be divided according to sharee’ah

Ruling on wills which deprive some of one’s children of their inheritance

Her brother is going to marry a corrupt girl and his family want to deprive him of his inheritance

Dividing one’s legacy and excluding a son who does not pray