A kind of parallel “rolling/ruling/ruler king” discussion/speculation here: South Australia:What the hell's a 'Rolling King'?

"The Banks of Clody
Down by the banks of Clody I heard a maid complain,
Making sad lamentations for her false-hearted swain;
She says, “I'm deeply wounded, bound in the chain of love,
By a false-hearted young man who does inconstant prove.”
I straightway stepped up to her, and put her in surprise;
I own she did not know me, I being in disguise.
I said, “My dearest jewel, my joy, and heart's delight,
How far have you to travel this dark and rainy night?”

Said she, “'Tis too much freedom for to accost me so,
But as you have heard my secret, I'll also let you know–
I seek a faithless young man – young Johnny is his name–
And its on the banks of Clody I'm told he does remain.”
“But don't depend on Johnny, he is a false young man;
Do not depend on Johnny, he will not meet you here;
But come with me to Greenwood, no danger need you fear.”

If Johnny he was here to-night he'd keep me from all harm;
He's in the field of battle all in his uniform.
He's in the field of battle, and his foes he does defy,
Like the rolling king of honor, going to the wars of Troy.
Bould Sarsfield was not braver when Erin he did guard,
And when the war is over, his king will him reward;
He's crossing the main ocean for honor and for fame.”
“No, no, fair maid, his ship was wrecked going by the coast of Spain.”

When she heard that dreadful news she fell into despair,
A wringing of her hands, and a tearing of her hair;
“Since Johnny he is drowned, no man alive I'll take,
Through woods and lonesome valleys I'll wander for his sake.”
So when he saw her loyalty, he could no longer stand.
He flew unto her arms, saying, “Bessy, I'm the man;
Bessy, I'm the young man – the cause of all your pain,
And since we met on Clody's banks, we'll never part again.”
[The Universal Irish Song Book, 1898, p.70]