Simplify the following text for a Grade 6 native English-speaking person.
Original: In 1273 and again in 1277 Lucca was ruled by a Guelph capitano del popolo ( captain of the people ) named Luchetto Gattilusio .
Simplified: In 1273 and again in 1277 , Lucca was ruled by a Guelph ( captain of the people ) named Luchetto Gattilusio .