Deceased Beneficiary

I am the executor of my Mother's estate in Canada. Her will states that her estate be divided between her eight children and lists the children's names.
Unfortunately my Eldest brother pre-deceased my Mother 2 years ago and his estate has been finalized. Since my mother never updated her will to remove his name, am I obligated by law to issue his portion to his widow or his portion now exempt because his estate is settle?
Confused as what to do as I feel that his family should be entitled to something however the other siblings do not agree.
Thanks for any feedback.

Wills can provide for that both ways and province law also can govern. You need to have a lawyer examine that and see which method applies to the will as written.