Which is the richest royal family on the planet? These are burning questions that this list answers. While royalty may hold power and authority due to their. Earlier this year Nepal voted to eliminate its year-old Hindu monarchy; former king Gyanendra was forced to turn over his royal palace in. Here we set out and profile the top 10 richest monarchs in the world. he is the top earning royal, with a net worth of just over $30 billion.