Her mother asked Hannah

[Bassim]

I am wondering if my sentence sounds natural.

Her mother asked Hannah what did he see in Peter when she married him, and she replied she had seen kindness and honesty.

 

[GoesStation]

Write "had seen" instead of "did see".

 

[emsr2d2]

More to the point, use "she had seen" instead of "did she see". The word order is important.

 

[Bassim]

I hope this version is correct:

Her mother asked Hannah what she had seen in Peter when she married him, and she replied she had seen kindness and honesty

 

[emsr2d2]

I hope this version is correct:

Her mother asked Hannah what she had seen in Peter when she married him, and she replied that she had seen kindness and honesty.

See above. I'd probably use "said" instead of "replied" but yours isn't incorrect.

 

[GoesStation]

That one is good except for its lack of final punctuation