Poetic form is changeable at whim -
thank God we are allowed to bend the rules.
Chaucer did it – it was OK for him,
Will Shakespeare, and John Milton – they weren’t fools.
Such rules after all are intended to be tools
not confining handcuffs, manacles or fetters.
I’ll join the party, write poems with my betters.
Rhyme royal (or Rime royal) is a rhyming stanza form that was introduced into English poetry by Geoffrey Chaucer, consisting of iambic pentameter lines which have a rhyme scheme of ababbcc.
The prompt at http://www.octpowrimo.com/ day 4 was rules and inspiration