A rhyme rooted in the lion and unicorn's old rivalry on the royal coat of arms, here turned into a scuffle over the crown that ends, rather English, with bread and cake handed round and everyone sent home. The chase-then-feast shape suits a bit of arm-waving.
From Mother Goose / Nursery Rhymes (traditional). See the whole collection.
The Lion and the Unicorn were fighting for the crown,
The Lion beat the Unicorn all around the town.
Some gave them white bread, and some gave them brown,
Some gave them plum-cake, and sent them out of town.
Public domain. Text from The Real Mother Goose (Blanche Fisher Wright, 1916), via Project Gutenberg. View the source edition