Question: Frederick of Pettorano, was the eldest illegitimate son of Frederick II, king of Sicily and Germany, besides Frederick of Pettorano, Frederick II probably named two other sons after himself: another illegitimate son, Frederick of Antioch, and a legitimate son by his wife, Isabella of England, was Holy Roman Empress, Queen of the Germans, and Queen consort of which location?

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Charles Webber (priest): Baptised on 17 May 1762 in the church of All Saints in Chichester, he was the eldest surviving son of the Reverend William Webber (1724–1790), a canon of Chichester Cathedral.  The Canon's father, Robert Webber, was said to be an illegitimate son of Charles Lennox, 1st Duke of Richmond, himself an illegitimate son of King Charles II, while the Canon's mother was Mary Maybank, reputedly a descendant of Louise de Kérouaille, Duchess of Portsmouth, a mistress of King Charles II.  William's mother had less elevated but wholly legitimate origins, being Anne Smith (1731–1806), daughter of John Smith, a surgeon in Chichester, and his wife Sarah Buckenham.  Among his uncles were Rear-Admiral Charles Webber (1722–1783), nominal father of Lieutenant-General James Webber Smith, as well as the rector of West Stoke outside Chichester, the Reverend Charles Smith (1729–1803).  His younger brother, the Reverend James Webber (1772–1847), became Dean of Ripon.

Alfonso Fadrique: Don Alfonso Fadrique (English: Alfonso Frederick , Catalan: "N'Anfós Frederic d'Aragó" ) (died 1338) was the eldest and illegitimate son of Frederick II of Sicily.  He served as vicar general of the Duchy of Athens from 1317 to 1330.

Frederick of Antioch: Frederick of Antioch ("c".  1223 – 1255/6), illegitimate son of the Emperor Frederick II and a south Italian noblewoman, ruled Tuscany from 1246 to 1250.  He took part in the wars of the Guelphs and Ghibellines in northern Italy, and in the war over the Kingdom of Sicily following his father's death (1250).

Isabella of England: Isabella of England (1214 – 1 December 1241), was Holy Roman Empress, Queen of the Germans, and Queen consort of Sicily.

Conrad of Antioch: Conrad of Antioch (Italian: "Corrado d'Antiochia" ; born 1240/41, died after 1312) was a member of the imperial Staufer dynasty and a nobleman of the Kingdom of Sicily.  He was the eldest son of Frederick of Antioch, imperial vicar of Tuscany, and Margherita di Poli.  He was thus a grandson of the Emperor Frederick II (reigned 1220–50), a nephew of King Manfred of Sicily (1258–66) and cousin of King Conradin (1266–68).  His surname, which is contemporary, comes from his paternal grandmother, a mistress of Frederick II, who was from Antioch.  He may be called "Conrad I" to distinguish him from his descendants with the same given name.

Frederick of Pettorano: Frederick of Pettorano ("c".  1212/3 – after 1240) was the eldest illegitimate son of Frederick II, king of Sicily and Germany.  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.  Besides Frederick of Pettorano, Frederick II probably named two other sons after himself: another illegitimate son, Frederick of Antioch, and a legitimate son by his wife Isabella.  This last is known only by the initial "F." and died young.

Anne Vavasour: Anne Vavasour (c. 1560 – c. 1650) was a Maid of Honour (1580–81) to Queen Elizabeth I of England, and the mistress of two aristocratic men.  Her first lover was Edward de Vere, 17th Earl of Oxford, by whom she had an illegitimate son – Edward.  For that offence, both she and the earl were sent to the Tower of London by the orders of the Queen.  She later became the mistress of Sir Henry Lee of Ditchley, by whom she had another illegitimate son.

Orlando d'Aragona: Orlando (or Roland) (1296–1361) was the second-eldest illegitimate son of Frederick II of Sicily by his concubine Sibilla di Sormella.  During his father's reign, he lived in the shadows, but he rose to influence in the courts of his half-brother Peter II and his nephews, Louis and Frederick IV, especially as the leader of the Catalan party after the death of his brother Giovanni of Randazzo.

Constance, Queen of Sicily: Constance (2 November 1154 – 27 November 1198) was Queen regnant of Sicily in 1194–98, jointly with her spouse from 1194 to 1197, and with her infant son Frederick II, Holy Roman Emperor, in 1198, as the heiress of the Norman kings of Sicily.  She was also Holy Roman Empress by marriage to Henry VI, Holy Roman Emperor.

John of Ibelin, the Old Lord of Beirut: John of Ibelin (c. 1179 – 1236), called the Old Lord of Beirut, was a powerful crusader noble in the 13th century, one of the best known representatives of the influential Ibelin family.  The son of Balian of Ibelin and Maria Comnena, Queen consort of Jerusalem, he had close ties with the nobility of both Cyprus and Jerusalem, since he was the half-brother of Queen Isabella I of Jerusalem.  Before he was 20, he was appointed constable of Jerusalem, and a few years later became lord of Beirut, where he rebuilt the city after Saladin's conquest, and established the grand Ibelin family palace.  He served as regent for two of his young relatives, Isabella's daughter Maria of Montferrat from 1205 to 1210, and then Henry I of Cyprus from 1228 until Henry came of age in 1232.  John was known as a principled man, and was seen as the natural leader of the Christian barons in the Holy Land.  He resisted the power-seeking of Frederick II, Holy Roman Emperor, in Cyprus, and opposed the imperial forces until Henry came of age.

Supporting paragraphs: Frederick of Pettorano Isabella of England
Answer: Sicily