A royal family picks heir as first baby born with birthmark on hand. Do anyone know country?

Question

Hear its a small country in Asia, they are muslims. Supposedly the next heir is a girl

Answer 1

Correct me if I am wrong, but could it be somewhere in India? Birthmarks are treated as a sign of reincarnation in the Indian culture. Birthmarks found on different parts of the body signify who they were or how they died in their previous life. I suppose a birthmark on their their hands means they were a great leader in their previous life.