The previous one was an adaptation to this forum of a riddle I read on net.
The original was:

GREAT KING

Five hundred begins it, five hundred ends it,
Five in the middle is seen;
First of all letters, the first of all figures,
Take up their stations between.
Join all together, and then you will bring
Before you the name of an eminent king.
David?
Who is David? Don't you need six letters?
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Geebens got it! Take the star *

David was a king of Israel, lots of wars at his time, he won the Philistine giant Goliat, remember now maj?
Yes, I do. Thanks, Elena.
Solution:
Five hundred begins it, five hundred ends it,
D = Roman numeral for 500

Five in the middle is seen;
V = Roman numeral for 5

First of all letters, the first of all figures,
A = the first letter
I = the first figure (number - in roman numerals)

Take up their stations between.
Join all together, and then you will bring
Before you the name of an eminent king.
DAVID
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Thanks for the star * Elena. LOL. I couldn't remember what 500 was in Roman numerals, but the A V and I were easy and so I took a guess. Hoorah. I feel smart today.