This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.

Passage: Following this victory, Edward realized that to create a force capable of retaking Jerusalem it would be necessary to end the internal unrest within the Christian state, and so he mediated between Hugh and his unenthusiastic knights from the Ibelin family of Cyprus. In parallel to the mediation, Prince Edward and King Hugh began negotiating a truce with Sultan Baibars; a 10-year-10-month-and-10-day agreement was reached in May 1272, at Caesarea. Almost immediately Prince Edmund departed for England, while Edward remained to see if the treaty would hold. The following month, an attempt to assassinate Edward was made. Several versions of who sent the assassin exist. According to different versions, the assassin was sent by the emir of Ramlah or by Baibars. Some legends also say that the assassin was sent by the "Old Man of the Mountains", leader of a heretical Muslim sect. Edward killed the assassin but received a festering wound from a poisoned dagger in the process, further delaying Edward's own departure. In September 1272, Edward departed Acre for Sicily and, while recuperating on the island, he first received news of the death of his son John, and then a few months later news of the death of his father. In 1273 Edward started his homeward journey via Italy, Gascony and Paris. Edward finally reached England in the middle of 1274, and was crowned King of England on 19 August 1274.
Question: How many different regions did Edward journey through on his way back to England in 1273?
Answer type: Number
3.