Military great leaders:
Arthur
Gawain
Lancelot
Geriant
Tristram
Daguenet
Scientific great leaders:
Merlin
William Murdock
Richard Trevithick
Traits:
Industrious, Commercial
Unique unit:
Knight of the round table (of course

!) I use Bebro's
generic knight for this.
It has the same stats as a normal knight (A4, D3, M2), but can enslave. The units it enslaves become squires, having the same stats as swordsmen (A3 D2 M1) - slightly outdated units that can still pack a punch. For the squire, I'm using Utahjazz7's
Hessish knight.
Civilopedia entry for the Knight of the Round Table :
#PRTO_Knight_of_the_Round_Table
^
^
^[Knights of the round table] move quickly and will [withdraw] from combat if they are losing (unless fighting another fast unit).
^A Cornish city must have $LINK<horses=GOOD_Horses> and $LINK<iron=GOOD_Iron> in its $LINK<Strategic Resource=GCON_ResourcesS> box to
build a knight of the round table.
^
^A victory in combat might result in the knight of the round table enslaving his opponent in battle. The enslaved opponent then becomes a $LINK<squire=PRTO_Squire>.
This soldier now fights for the Cornish.
#DESC_PRTO_Knight_of_the_Round_Table
^
^
^Everyone has heard of the knights of the round table, but many people are not familiar with any of the noble knights save for Lancelot.
The knights were men of courage, honor, dignity, courtesy, and nobleness. They protected ladies and damsels, honored and fought for kings,
and undertook dangerous quests.