Of course, the crown indicates wealth, royalty, supremacy and power. The king is the highest authority for his people, almost like a God. The wearer of the crown carries his authority over all subjects, but from that authority also derives big responsibility. It's also a very strong symbol in the Christian religion: When the Son of God was crucified, wearing a crown of thorns on his head it became a symbol of pain which he accepted.
The crown tattoo is very flexible and common to both sexes it lends itself to numerous interpretations: it can be realized in both a stylized or realistic style, perhaps embellished and enriched by the presence of precious stones.