|Martyr and Bishop of Aphrodisia|
|Born||Palermo, Sicily, Italy|
|Died||1160, Sicily, Italy|
|Venerated in||Roman Catholic Church|
|Canonized||Cult approved by Pope Leo XIII|
Cosmas was Bishop of Aphrodisia and martyr. Born at Palermo, on the island of Sicily, and was appointed and ordained Bishop of Aphrodisia, ordained by Pope Eugene III. When the Saracans invaded the island and captured his see, Cosmas was seized and suffered martyrdom.