Here's a breakdown:
* yo: I (subject pronoun)
* pregunte: asked (past tense of the verb "preguntar")
* a la: to the (preposition "a" + definite article "la")
* princess: princess
It's important to note that depending on the context, the phrase might also be translated as:
* "I questioned the princess"
* "I inquired of the princess"
* "I asked the princess a question"
The best translation will depend on the specific situation in which the phrase is used.