In the world of essential oils, Neroli is a relative newcomer. By the end of the 17th century, Anne Marie Orsini, the Italian Princess of Nerola, introduced the essence of bitter orange tree as a fashionable fragrance by using it to perfume her gloves and her bath. Since then, the term “neroli” has been used to describe the essence. Associated with purity, neroli is believed to bring peace to the heart.