Fun fact the reason most Disney characters didn't have mothers was due to the fact that Walt Disney felt guilty over the fact his mom died in the house he bought for her.
Sleeping Beauty, Mulan, Peter Pan, Tangled, the Lion King 2, High School Musical, Cloud 9, Suite Life on Deck the Movie,101 Dalmatians, Mary Poppins, (and as it said in the post, Brave)
And I'm pretty sure Bob nor Helen died.