Pronoun
The objective case of who. See Who.
Source: Webster's dictionaryYou should know that there is present with you the angel whom God has appointed for each man... This angel, who is sleepless and cannot be deceived, is always present with you; he sees all things and is not hindered by darkness. You should know, too, that with him is God. Anthony the Great
Men imitate the gods whom they adore, and to such miserable beings their crimes become their religion. Cyprian
Is it not excessively ridiculous to seek the good opinion of those whom you would never wish to be like? John Chrysostom
Beware of the man to whom you have done a good turn. Lebanese Proverb
Overtakes whom gets, and stones whom doesn't. Azerbaijani Proverb
Who has not had a taste longs to do so, but for whom has tasted then the longing is a hundred times more. Persian Proverb