The first answer is: Half-Human Half-Goblin (this is where the parts that his face was made out of came from)
The Second answer is: 150, this is a knights battlescore
The third answer is: 1, the number used to use up an exploration chance
The fourth answer is: 10, The South coast
The fifth answer is: ... Different for every game save, this is the combination of the battlescores of the first, third, and fifth independent kingdoms first tier units battlescores. You can see this via diplomacy or via going to the extras screen and then 5) In-game unit and battlescore wiki