Queen vs Princess
Queen and Princess are two words that are often confused as words denoting the same meaning. Actually they are two different words conveying two different senses. Queen is the consort or the wife of a King. On the other hand princess is the daughter of the King and the Queen. This is the main difference between queen and princess.
Queen sometimes looks into the administrative affairs of the kingdom if the king falls sick or dies. On the other hand a princess does not look into the administrative matters of the kingdom unless she is asked to do so by the king.
A princess is normally given in marriage to the prince of a neighboring country or a kingdom. It is customary that the king celebrates the marriage in a very grand style. In olden days the marriages of princess are attended by one and all. The entire city appears in a festive mood during the marriage of a princess of a kingdom.
It was a normal practice in many kingdoms of several countries in the past by which a princess selects her husband by herself by means of tests and examinations or competitions. Whichever prince wins the competitions will marry the princess.
There was also a practice to marry the princess of an annexed kingdom in those days. Immediately after marriage a princess becomes a queen. Hence queen is considered as a promotion from the level of a princess. A queen is always considered the first woman citizen of the kingdom. Queen also along with the King accepts the guard of honor when she visits other kingdoms. These are the differences between queen and princess.