I don´t want to be picky but Princess and Sheikha will not be a similar,just like Duke or Princess,They may be all royal titles Nevertheless they shouldn´t be bewildered: Actually? I used to be told it means ruler,I believed the Emir could be the most powerful guy in the country- https://dubairoyalfamily34568.tinyblogging.com/the-single-best-strategy-to-use-for-dubai-royal-family-members-76587956