Mat suspected she had not been a very good ruler.

Ordinarily, that would have made him a good enough ruler.

He did not think his sons were be good rulers.

Then she said a good ruler has to learn his world's language, that it's different for every world.

King Peter, you have the potential to be a good ruler.

He had been a good ruler, for over twenty years.

However, he proved to be a good and strong ruler despite numerous challenges.

He had been a good ruler, they said, but ailing for a long time.

If you're a good enough ruler, none of your people will think to question it.

Tashir is turning out to be a fine young man, and a good ruler.