Background
He was born on Sicily to an Italo-Norman noblewoman after his father"s first marriage to Constance of Aragon.
He was born on Sicily to an Italo-Norman noblewoman after his father"s first marriage to Constance of Aragon.
This mistress"s name is unknown, but she came from a family of Norman counts on Sicily and had a relationship with the teenage Frederick between 1211 and 1212. Their relationship ended when King Frederick went to Germany and in 1213 took up with another woman, a certain Adelaide. This last is known only by the initial "F." and died young.
The illegitimate Frederick does not seem to have been well-treated by his father.
He received only the meagre castle of Pettorano in the Abruzzi, in the northern mainland of the Sicilian kingdom. Perhaps out of dissatisfaction, he seems to have become involved in plots against his father.
He does not appear again in any surviving records.