to which; right

[wrongnumber]

1. Is the bold which a non-defining relative pronoun ?

The article, which appeared in The Sun, “included the telling detail that we’d offered to relinquish our Sussex titles,” Harry writes. “There was only one document on earth in which that detail was mentioned — my private and confidential letter to my father. To which a shockingly, damningly small number of people had access. We hadn’t even mentioned it to our closest friends.”


Second, unrelated question, transferred to a new post - Moderator

 

[jutfrank]

Yes. But it isn't the pronoun that's non-restrictive, it's the clause.

What may be distracting for you here is the way the text has been punctuated. It may make more sense to you grammatically like this:

... my private and confidential letter to my father, to which a shockingly, damningly small number of people had access.

The two bold noun phrases are co-referent. In other words, which is referring to the letter.

 

[emsr2d2]

1. Is the bold "which" a non-defining relative pronoun?

The article, which appeared in The Sun, “included the telling detail that we’d offered to relinquish our Sussex titles,” Harry writes. “There was only one document on earth in which that detail was mentioned — my private and confidential letter to my father. To which a shockingly, damningly small number of people had access. We hadn’t even mentioned it to our closest friends.”

2. In the context of no colon here "My children should be proud of me. I brought them up right. I gave them all an education", what is the difference between "I brought them up right" and "I brought them up"?

and which one What does "right" here mean here?
1) properly
2) completely

Please note my corrections to your text and my improvements to the layout above.

 

[jutfrank]

Just in case the moderators may not have noticed, the original poster here has asked a perfectly good question but then added a completely unrelated second question (and changed the thread title, I believe) some five and a half hours later.