monarchs as leaders?

[unmerged(1618)]

Looking through the db folder, it seems that some of the monarchs can also be leaders. However, I've had several of those monarchs rule my country without being available as leaders. Is there some option I'm missing or is it random? If it's random, it must occur with some low probability, since I've never seen it -- only normal leaders of 'monarch' rank.

 

[Oranje]

Monarchs can be military leaders yes, but it's historical, not random.
No need to look in the monarch files for military stats though, as there is no link between the leader and monarch files.
Only monarchs that appear in the leader file for a country will appear in the game as military leaders.