Constance of Sicily (regent)
Constance of Sicily (1324 – 22 October 1355) ruled the Kingdom of Sicily as regent in the name of her brother, King Louis. She was the daughter of king King Peter II and his wife, Elisabeth of Carinthia.
In 1352, she succeeded her mother as regent during the minority of her brother. Her regency was marked by conflicts between noble fractions was well as the black plague. In 1355, Louis died of the black death, shortly followed by her. She died unmarried. Her position as regent of Sicily was taken over by her sister Euphemia, who kept it until 1357.