Actually, it doesn't. I've been using it and the effect activates before being destroyed if you attack or are attacked. Plus it doesn't say anything about having to stay on the field.
No, it can be destroyed and applied it's effect, and with continues spell you can recovery to your hand, and if you another princess in field, you can special summon again.
No, it can be destroyed and applied it's effect, and with continues spell you can recovery to your hand, and if you another princess in field, you can special summon again.