In misty glens where thistles grow,
A tale of treachery, dark and low.
Where stone walls whisper ancient lore,
Of crowns that fell to rise no more.				## Maybe relating to a incident of a king getting overthrown? idk

Seek ye the place where rivers meet,
Where royal blood once stained the street.			## someone got killed?
A castle's shadow looms nearby,
Its secrets locked in mortar dry.

Not Elsinore, but kindred shame,
Where kinsmen plotted, took their aim.				## to overthrow the king's rule or something?
The crown did fall, a nation reeled,				## then someone DID got killed
In Scotland's heart, the truth concealed.			## Ah yes finally, a location

Where cobbles echo footsteps past,
And ghosts of kings their shadows cast,
The answer lies, if you dare seek,
In halls where history doth speak.				## so the flag is related to a king's death in scotland				

Find where the old and new entwine,
Where modern glass meets ancient spine.
The murder's stage, now tourist's fare,				## tourist location, loc of royalty(king) murdered, now a tourist loc
Reveals itself to those who dare.

Beneath the mist of ages gone,
A city's heart still beats on,
Where alleys twist and chimneys smoke,
And ancient stones their tales invoke.

Seek ye the place where justice dwells,
In chambers where the truth compels,
A door of crimson, walls of white,				## white building walls with a red door, maybe a church or sum...
Guard secrets of that fateful night.

Near where the deed was darkly done,				## where the murder took place
A guardian of rights has won,					## maybe refering to the constitution or law?
His fortress stands, a beacon bright,
For those who'd challenge crown and might.

In shadows of the old town's reach,
Where history and present meet,					## again, loc of murder in modern time
The answers to this riddle lie,
For those with keen and searching eye.

Not far from where the monarch fell,
A modern Portia casts his spell,				## referencing to a lawyer (wiki)
With crimson door and snowy wall,				## so a building with a red door and white walls, NOT A CHURCH
He stands where justice casts its pall.				## a male lawyer.... i guess?

Defender of the accused and shamed,
This legal eagle, justly famed,
Near murder's ground, both old and new,				## so a lawyer, near the king's murder
Awaits to give the devil his due.

A gentleman of law, not dame,
His office near the scene of shame,				## he lives near the loc of murder
Where ancient wrongs and modern plights,
Find voice in his impassioned fights.

His name, a regal echo strong,
Of kings who ruled when knights were young,
A Henry bold, with George before,				## we have 2 names, need to find kings with these names
Defends where once a crown was wore.				## maybe a defence attourney?

Now seek the plate upon the door,
The final clue you're searching for,				## name plate?
What name is etched in letters clear?
The answer to our riddle dear.