What does al quien mean?

"Al quien" is a Spanish phrase that means "to whom". It is a direct object pronoun, indicating the person or thing receiving the action of a verb.

Here are some examples:

* ¿A quién le diste el libro? (To whom did you give the book?)

* No sé a quién se lo di. (I don't know to whom I gave it.)

* ¿Al quién le importa? (Who cares?)

It's important to note that "al quien" is rarely used in modern Spanish. Instead, the more common form is "a quién."