William the Marshall is come into France
To win him renown with his sword and his lance;
In all that fair country no knight can be found
In battle or tourney to cast William down.
William the Marshall right loyal was he
And valiant in service to good King Henry;
On the helms of the French knights he made his steel ring,
And beside them fought Richard, the son of our king.
King Philip of France thought the war he had won
When he leagued with Count Richard, our king's eldest son,
For an aging king's knights very rarely are known
To blithely bear steel 'gainst the heir to the throne.
Count Richard was doughty and heavy of hand
And called no man master through France or England,
But William the Marshall, through all of the West,
Had fought in no combat save he proved the best.
It chanced that our army had suffered a rout
From which fled the king with but few men about;
Them did Count Richard most fiercely pursue,
And his company likewise was valiant but few.
Quoth Henry "Good comrades, the foe follow fast;
We have fought many battles, but this is the last."
"Nay Sire" said William "I think it not so.
By Your leave I remain here to hinder the foe."
So William the Marshall, with one knight beside,
His leige lord to save turned him back in his ride;
His shield on his arm and his lance couched low,
He wheeled round his horse and rode straight at the foe.
Count Richard leads rashly, with three men or four,
So quickly he'd come that no armor he wore;
Straight at the leaders rides William in wrath,
With Richard Plantagenet right in his path.
They say that Count Richard was valiant and fell,
A lion in battle, as many tales tell,
But even a hero is apt to get hurt
When the best lance in Europe comes aimed at — his shirt.
Count Richard was valiant and royally proud,
Yet he stood in his stirrups and shouted aloud:
"O slay me not Marshall, for armor I've none,
And to slay me unarmored right basely 'twere done."
Sir William replied, for his rage it was hot,
"The Devil may slay you, the Marshall will not."
He slacked not his charge and he bent not his course,
But his lance point came down and he slew — Richard's horse.
This only remains: ere a month passed away
King Henry of England upon his bier lay;
In grief were his knights there, all standing around,
When to them came Richard, the heir to the crown.
Seeing the Marshall he called him apart:
"But lately you sought with your lance for my heart.
You charged me unarmored and I would be dead,
But your lance struck my arm and my horse died instead."
"Nay Sire," said William, "you do me great wrong;
My eye is still clear and my arm is still strong.
I struck where I aimed; had I wished it instead,
Your horse would still live and another be dead."
“I sought for your death neither then nor before,
But would think it no crime to have slain you in war."
"Be pardoned," said Richard, "I'll bear you no ire
And pray that men serve me as you served my sire."
I've simplified a little for dramatic effect, but the stories are apparently true. All the poems are based on the _Histoire_, written shortly after William's death, presumably based mostly on what the author was told by the surviving members of his household, in part their memories of what William had told them. It's biased in a pro-William direction and the early parts have some mistakes — none of the sources would have been adults, most not yet born, when William was a child — but seems to be reasonably accurate.
At the time of the incident with Stephen William actually had three older brothers, two from his father's first marriage, but the _Histoire_ mistakenly reports that those two were dead and I have followed it in implying only one brother.
There are various points where modern historians disagree about claims in the book, in particular whether King John actually appointed William to run things after his death or appointed a group of several lords, of whom William was one, but it's clear that he did end up as effectively the regent, a title that hadn't appeared yet, until after the civil war and French invasion had been dealt with. I have a fourth poem on that, but it isn't finished.
Reminds me of my dad's 1923 'Robin Hood' book I read and re-read halfway up a tree when small. By George Cockburn Harvey. Still re-read it now and then, though I skip the tree.