M.P.
What really happened is that the princess is growing up a little and beginning to understand that "good Stuff" happens while you sleep. She may be ready to give up one nap of her naps times and be ready for one afternoon nap. Some quiet time in place of her morning nap will allow her to unwind and rest but not necessarily sleep. She also may have some separation issues holding on longer to the routine of rocking and holding. The resistence is normal, I think. I suggest keeping the routine consistent, talk about "time for bed" giving her lots of warning that it is coming. Hold, rock read for a reasonable amount of time and then crib, love you, nighty night and let her learn to comfort herself into sleep mode. It is sometimes very difficult for babies, as they become more active, to unwind and settle down. They are a lot like the energizer bunny who keeps"going, and going, and going"