Excerpts from Regent Guide:
Taking 20: "Likewise, a regent may elect to take 20 on regent actions, but this uses up all 3 regent actions (you can still take you bonus regent actions normally) for that turn."
Realm: These actions require the expenditure of one regent AND one or more court actions.
Could a regent take 20 in a realm action (since they are equivalent to a regent and several court actions)? I guess not, but I would like a definite answer.
thanks