Little girls often want to feel like princesses and I always got true enjoyment of watching my girl wearing a costume I have made. For moms or grandmothers with similar requirements, here's is an easy one. I have lined it because the netting could become itchy around the armhole. It is necessary to use very soft nylon netting or tulle.
Step One: Cut all the pieces of the pattern for the princess costume
Step Two: Cut the cape
Step Three: Sew the back and add the cape
Step Four: Sew the front
Step Five: Sew the back of the back and attach the front
Step Six: Sew the lining
Step Seven: Sew the lining to the princess dress.
Step Eight: Add the sleeves and bias casing on the shoulders.
Step Nine: Hem the princess dress.
Source: Easy Princess Dress Pattern: Have you seen Frozen? - So Sew...