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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
of whom
Grammar usage guide and real-world examplesUSAGE SUMMARY
"of whom" is correct and usable in written English.
It is a pronoun that is used to refer to the previous noun (usually a person) in a sentence. Example: "My father, of whom I am very proud, was an excellent musician."
✓ Grammatically correct
News & Media
Science
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
59 human-written examples
Make it "of whom".
News & Media
Some of whom?
News & Media
All of whom were men.
News & Media
"The self-defense of whom?
News & Media
"UNAMA is an entity of whom?
News & Media
We talked, and of whom but Trachi?
News & Media
(Each of whom was named Louise).
News & Media
One of whom was my father!
News & Media
All of whom will greatly miss her.
News & Media
Zanzibaris, most of whom are moderates, disagree.
News & Media
(Of whom more below).
News & Media
Expert writing Tips
Best practice
Use "of whom" to introduce a relative clause when referring back to people, especially in formal writing. It adds a layer of sophistication and precision to your sentences.
Common error
Avoid using "of whom" in informal conversations or writing, as it can sound overly pretentious. Opt for simpler alternatives like "who" or "that" in such cases.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "of whom" functions as a relative pronoun introducing a relative clause. This clause provides additional information about a previously mentioned noun phrase (a person or group of people). Ludwig AI confirms its proper usage in referring to people, adding detail and context.
Frequent in
News & Media
45%
Science
35%
Formal & Business
10%
Less common in
Wiki
5%
Reference
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "of whom" is a grammatically sound and frequently used construction in formal English to introduce relative clauses that provide more information about people. Ludwig AI confirms this assessment, and the numerous examples highlight its prevalence across diverse contexts such as News & Media, Science, and Formal & Business writing. While alternatives exist, "of whom" maintains a level of formality and precision suitable for professional communication, though it should be used judiciously in more informal settings.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
to whom
A more direct and simpler way to phrase the relationship, suitable for many contexts.
regarding whom
This alternative is more formal and emphasizes the subject being discussed.
concerning whom
This alternative is similar to "regarding whom" but can imply a more direct relevance.
about whom
A slightly less formal option that directly indicates the topic of discussion about a person.
in respect of whom
This phrase is highly formal and often used in legal or official contexts.
with reference to whom
A formal way of introducing a person who is being mentioned or discussed.
in relation to whom
Highlights a connection or relationship between different people.
from whom
Indicates the source or origin of something related to the person.
by whom
Focuses on the agent performing an action.
on whose part
Indicates the perspective or side of the person involved.
FAQs
How do I use "of whom" in a sentence?
Use "of whom" to introduce a relative clause when referring to people. For example, "The students, all "of whom" were dedicated, excelled in their studies."
What's the difference between "of whom" and "of which"?
When is it appropriate to use "of whom" in writing?
It's best to use "of whom" in formal writing or when aiming for a more sophisticated tone. In informal contexts, using "who" is often sufficient.
Can I replace "of whom" with "whose"?
While both relate to possession or association, they function differently. "Of whom" introduces a relative clause, while "whose" is a possessive pronoun. An example would be: "The candidate, "of whom" many approve, is here", vs. "The candidate whose policies are popular, is here".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested