Barbara Beach was badly burned in the Jan. 20 fire in a trailer park in Penfield outside Rochester.
Her son tells the Democrat and Chronicle ( http://on.rocne.ws/1krKXby) that she died at around 5 a.m. Saturday at a hospital. She was 66.
The fire had already taken the lives of three other family members: 9-year-old Tyler Doohan, his grandfather and his stepgreat-grandfather.
Authorities and relatives say Tyler woke up first during the early morning blaze. They say he roused his family, then went back into the burning home to try and rescue an elderly relative who used a wheelchair.
Information from: Rochester Democrat and Chronicle, http://www.democratandchronicle.com