Jan and her husband Stan Berenstain created the Bear family — Mama Bear, Papa Bear, Brother Bear and Sister Bear — back in 1962 … when they published their first book, “The Big Honey Hunt.”
Since then, they fired out more than 300 stories.
According to Jan’s son, Jan suffered a severe stroke on Thursday and died the following day.
Stan died back in 2005 at the age of 82.
They are survived by their sons and four grandchildren.