Simplify the following text for a Grade 10 native English-speaking person.
Original: The Jutes were a Germanic people who are believed to have come from Jutland ( called Iutum in Latin ) in modern Denmark inclusive Southern Schleswig in Northern Germany and part of the Frisian coast .
Simplified: They are believed to have originated from Jutland ( called Iutum in Latin ) in modern Denmark , Southern Schleswig ( South Jutland ) and part of the East Frisian coast .