FACTS:

Testator Bohonan, a citizen of the State of Nevada at the time of his death declares that his will and testament shall be governed by the laws of the state of Nevada and admits the same to probate.  Out  of the total estate of P211,639.33 in cash, the testator gave his grandson P90,819.67 and one-half of all shares of stock of several mining companies and to his brother and sister the same amount. To his children he gave a legacy of only P6,000 each, or a total of P12,000.

The wife Magdalena C. Bohanan and her two children question the validity of the testamentary provisions disposing of the estate in the manner above indicated, claiming that they have been deprived of the legitime that the laws of the forum concede to them. It is not disputed that the laws of Nevada allow a testator to dispose of all his properties by will.