In fact, before the Doris family approached Leonard and the others, they had thoroughly investigated Joan. For such an ancient noble family, the requirements for an heir were not very high, but they were certainly not low.
They could tolerate an ordinary or even mediocre heir, but they would never tolerate an heir with moral or ethical problems.
At least for them, if the only heir really had a big problem, they would rather let the noble title disappear completely than compromise on this matter.
After all, the title of Earl represents Saint Joan, the hero of France in the past. It is better to cut off the inheritance than to choose an heir that would bring shame to the ancestors.
Fortunately, the investigation results were very satisfactory to Mr. Doris. Whether it was Joan's nationality, her personal character, or her devotion to religion, he found it to be very good.