Celine Dion's older brother Daniel has died from cancer ... Howwe.Biz has learned.

Daniel, 59, passed away early Saturday morning surrounded by family in Celine's native Montreal. He had been fighting brain, tongue and throat cancer.

A memorial will be held next Saturday in Charlemagne Quebec, where the family was raised.

Celine's husband, Rene Angelil, passed Thursday from throat cancer.

R.I.P.

Source: TMZ