Question: Who was the wife of the explorer whose first land site in North America was Cape Bonavista Newfoundland?

Context paragraphs:
Point Riche: The Headland of Point Riche is located near the community of Port aux Choix on the Great Northern Peninsula of the island of Newfoundland in the Canadian province of Newfoundland and Labrador.  Point Riche to Cape Bonavista was the defining points of coastline where the French could fish around the coast of Newfoundland which is called the French Shore.  The point is marked by the Point Riche Lighthouse.

Sebastian Cabot (explorer): Sebastian Cabot (Italian and Venetian: "Sebastiano Caboto", Spanish: "Sebastián Caboto", "Gaboto" or "Cabot"; c. 1474 – c. December 1557) was an Italian explorer, likely born in the Venetian Republic.  He was the son of Italian explorer John Cabot (Giovanni Caboto) and his Venetian wife Mattea.

Norman D. Vaughan: Colonel Norman Dane Vaughan (December 19, 1905 – December 23, 2005) was an American dogsled driver and explorer whose first claim to fame was participating in Admiral Byrd's first expedition to the South Pole.  He also ran dog teams in a professional capacity as part of a search and rescue unit in World War II, in sporting events like the Olympics and the Iditarod Trail Sled Dog Race, and in three Presidential Inauguration ceremonies.

Matthew (ship): The Matthew is a replica of a caravel sailed by John Cabot in 1497 from Bristol to North America, presumably Newfoundland.  After a voyage which had got no further than Iceland, Cabot left again with only one vessel, the "Matthew", a small ship (50 tons), but fast and able.  The crew consisted of only 18 people.  "The Matthew" departed either 2 May or 20 May 1497.  He sailed to Dursey Head (latitude 51°36N), Ireland, from where he sailed due west, expecting to reach Asia.  However, landfall was reached in North America on 24 June 1497.  His precise landing place is a matter of much controversy, with Cape Bonavista or St. John's in Newfoundland the most likely sites.

Cape Freels (Avalon): Cape Freels is a headland on the island of Newfoundland at the southern tip of the Avalon Peninsula.  It is the most southerly point of land on the island of Newfoundland and hence the most southerly of the province of Newfoundland and Labrador.  This cape on the Avalon Peninsula is not to be confused with another Cape Freels in Newfoundland, located at the northern extremity of Bonavista Bay.  In addition, Cape Freels (Avalon) shares the distinction of being the most southerly point in Newfoundland with nearby Cape Pine, which is situated at the same latitude.

John Cabot: John Cabot (Italian: "Giovanni Caboto" , Venetian: "Zuan Chabotto" ; c. 1450 – c. 1500) was a Venetian navigator and explorer whose 1497 discovery of the coast of North America under the commission of Henry VII of England was the first European exploration of the mainland of North America since the Norse visits to Vinland in the eleventh century.  To mark the celebration of the 500th anniversary of Cabot's expedition, both the Canadian and British governments elected Cape Bonavista, Newfoundland, as Cabot's first landing site.  However, alternative locations have also been proposed.

French Shore: The French Shore also called the Treaty Shore, resulted from the 1713 ratification of the Treaty of Utrecht.  The provisions of the treaty allowed the French to fish in season along the north coast of Newfoundland between Cape Bonavista and Point Riche.  This area had been frequented by fishermen from Brittany since the early 16th century, which they called "le petit nord" ( little North ).

Cape Bonavista Light: Cape Bonavista Light is a lighthouse located on Cape Bonavista, Newfoundland.  The lighthouse, which operated from 1843 until 1962, is now a provincial museum, containing an exhibition about life in a lighthouse during the 1870s.

Cape Bonavista: Cape Bonavista is a headland located on the east coast of the island of Newfoundland in the Canadian province of Newfoundland and Labrador.  It is located at the northeastern tip of the Bonavista Peninsula, which separates Trinity Bay to the south from Bonavista Bay to the north.  The nearby town of Bonavista takes its name from this historic landmark.

Cape Freels, Newfoundland and Labrador: Cape Freels is one of the communities that comprise an area (also known as Cape Freels) on the northeast coast of the Island of Newfoundland, called Bonavista North, in the province of Newfoundland and Labrador, Canada.  These communities have a shared history in that they were settled by people from England, predominantly from the West Country - Dorset, Devon, Somerset and Hampshire.

Supporting paragraphs: Sebastian Cabot (explorer) John Cabot
Answer: Mattea