"Le Front Brillaunt" - a lesson in life and archaic French

There lived a knight in days of olde-
Most noble and gallant.
His heart was pure- his manner bold
They called him “Le Front Brillaunt”.

Pure of heart and gentle of mien
The epitome of romaunt -
Mighty of arm and nimble of brain
The noble “Le Front Brillaunt”.

Of hubris he nothing knew –
He was humble and bien-pensant
His soul was pure as the morning dew
The virtuous “Le Front Brillaunt”  

His daring deeds known far and wide
From shore to far piedmont-
No plea for help would be denied
By the heroic “Le Front Brillaunt”.

There was a maiden pure and fair
Her hair was a golden bouffant-
Who captive was- in a dragon’s dark lair
So they sent for “Le Front Brillaunt”.
His destrier he mounted with flair –
And loudly cried “Avaunt!”
The sound of cheering filled the air
For the mighty “Le Front Brillaunt”.

He galloped cross the countryside
Traversing many a wide arpent-
Until the dragon’s crag he spied
The sharp-eyed “Le Front Brillaunt”.

“Never fear –for I am come  
To save you my little croissant!
The dragon I’ll dispatch with aplomb!”
Cried the valiant “Le Front Brillaunt”!

He rode straight towards the vile wyrm
Without a further taunt –
Determined to do him lethal “hyrm”
The mighty “Le Front Briaunt”.

He galloped cross the verdant sain-foin
(It was too late for détente)
And then the battle he did enjoin-
The courageous “Le Front Brillaunt”!

Mail and scale, fell about like rain
In full and bloody bacchante!
Cries of anguish – roars of pain –
From the Dragon and “Le Front Brillaunt”.

Through all that day and all that night –
It was a really Guerre a’ outrance-
The two opponents continued the fight –
The beast and “Le Front Brillaunt”!

And as the sun rose blood red-
The battle reached its denouement –
And one of adversaries fell down dead-
Was it the Dragon or Le Front Brillaunt”?

Now I am but a simple jongleur
Not a scholar or savant-
So I can but conjecture
As to the fate of “Le Front Brillaunt”-

For it seems to me both sword and claws
Are weapons par excellence.
And mighty shield and flaming jaws
Might render either ci-devant.

But here is the end of this inquiry
This comic little sirvente.
Of the battle twixt the dragon fiery
And the noble Le Front Brillaunt.

At the mouth of the dragon’s lair
Grinning in a manner most riant
Devoid of flesh and flaxen hair
Lies the skull of Le Front Brillaunt