"How many pets did her family have?"
Translation:Hvor mange kjæledyr hadde familien hennes?
From Possesive's Tips and Notes:
Sin, Si, Sitt, & Sine
The above are an interesting set of possessive adjectives in Norwegian. They all translate to his, her, its, or their and can only be attached to objects in a sentence. Sin, Si, Sitt, & Sine describe something that the subject has or owns, not somebody else. This distinction does not exist in English.