By Cordelia Hsu SYDNEY (Reuters) – Australian-born Mary Donaldson, who will become Queen of Denmark on Sunday when her husband, Crown Prince Frederik, ascends the throne, has been recognised as one of the world’s most sophisticated and well-dressed people. But the former marketing executive had a long journey from the island state of Tasmania where she was born to Denmark’s royal residence Amalienborg, once taking an intensive eight-week course in deportment and etiquette run by a former model. Donaldson, now Crown Princess Mary, met the prince in a Sydney pub during the 2000 Summer Olympics h…