request (something) of (someone or something)
To express a desire to be granted something from someone or something else. Typically used when the thing being requested is vague or unspecified ("from" is more often used after "request" when the thing is specified). If you're done requesting favors of me, I'll thank you to let me get back to work. I try not to request too much from my coworkers.
request something of someone
to call for someone to give or do something. I have to request a favor of you. Can I request anything more of him?