Since a majority of players prefer their royals to be tended, here are a few things to keep in mind.
1) Only accept royals you truly plan to be tending, many get upset when you request to join their crew, and then rarely, or never tend.
2) To find your royals quickest, find the crowns on your neighbor bar, that tells you who you have royals with.
3) You can also use that same crown, while at that neighbors kingdom, to locate royals you are in. All you have to do is click on the crown, and it will take you to your royal. Just click again to find another.
4) Most importantly, try to be sure you are not in anymore than FIVE royals, as that is the max amount of energy you can spend per day in a neighbors kingdom.