Isn purple reserved for the King or Queen?
No, that’s a common costuming myth, which has been encouraged by Faires who want the Queen to be instantly recognizable. The actual sumptuary laws of the time state that purple silk was reserved for the Royal family. Nothing was said about purple wool, linen, or burlap. And, while the actual Tyrian purple was rare and expensive, there are many shades of purple that are easy to achieve naturally — as anybody who’s picked blackberries knows.