An empress is commonly defined as the female equivalent of an emperor, an emperor's wife (empress consort). The tile of being an empress could also be referred to the emperor’s mother (empress dowager), or a woman who rules in her own right (empress regnant). An empress consort usually shares her husband’s rank and holds the feminine equivalent of the king’s monarchical titles while an empress regnant is a queen in her own right with all the powers of a monarch, usually becoming empress by inheriting the throne on the death of the previous monarch. Quite similar to the description of an empress, queens are the female equivalent of kings. Both are considered to be monarchs, the only difference being is that the emperor and empress are considered to be the higher monarchical titles than king and queen. A monarch is the sovereign head of state, officially outranking all other individuals in the realm. An empress or queen may exercise the most and highest authority in the state independently or along with their husbands.. Browse this section to explore about the life and works of various famous empresses and queens from all over the world.