who (which)

1) which; 2) in which; 3) whence; 4) as which

who, which, what, that; also (as an adverb and a conjunction) when, where, how, because, in order that, etc.

[idiom] after, [idiom] alike, as (soon as), because, [idiom] every, for, [phrase] forasmuch, [phrase] from whence, [phrase] how(-soever), [idiom] if, (so) that ((thing) which, wherein), [idiom] though, [phrase] until, [phrase] whatsoever, when, where ([phrase] -as, -in, -of, -on, -soever, -with), which, whilst, [phrase] whither(-soever), who(-m, -soever, -se). As it is indeclinable, it is often accompanied by the personal pronoun expletively, used to show the connection.

who, which, what, that

also (as an adverb and a conjunction) when, where, how, because, in order that, etc.