"The Frog King" by the Brothers Grimm vs. "Cupid and Psyche" by Lucius Apuleius
“The frog king” begins with the ”beautiful” princess playing with a golden ball and accidently dropping it into a well whereas “Cupid and psyche” began with really developing who the princess is, the reader is told she has a father, mother and two older sisters. But of the three daughters she is the most beautiful.
Both begin with emphasizing the daughters’ beauty.
The focus of “cupid and psyche” is centered on the princess’s beauty so much that the real Venus became jealous of the princess and sent her son, cupid to get revenge.
The focus of “the frog king” is to not judge a book by it cover and not to make promises you can’t keep.
There is no frog character in “cupid and psyche” though the frog is one of the main characters in “the frog king”
However there is a character who acts as the frog and it is the unknown monster figure.
Both the princesses wanted to kill the “beast” they faced. In cupid and psyche when the monster approached her she held a knife in plans of killing him. As for the frog king she threw the nasty frog against the wall in hopes that would kill him.
A major difference is that cupid and psyche is a myth because it involves Gods and the frog king is a tale because it involves a magical transformation.