re: Old concept- blood money.

I see. Thank you for explaining. I came across the idea from a old crusader song, 'Le Roy Louis' where king louis asks his vassals if they are willing to go to the holy land with him. There a duke said he will defend the kingdom but doesn't want to sow death on the seas. The king responded our kingdom stretches across africa and the desert, and that blood money was owed. When I heard this it made me think of my OP. So makes sense what you said considering the source.