I don´t want to be picky but Princess and Sheikha will not be the exact same,much like Duke or Princess,They can be all royal titles but they shouldn´t be confused: 2. I think men can obtain titles from their wifes (which include daniel of sweden became a prince following marrying https://dubai-royal-family-member35678.theblogfairy.com/32150011/getting-my-royal-membership-card-benefits-to-work