Lisbon system

Lisbon is a planetary system formerly under the control of the Unified Earth Government.

History
In 2499, humanity colonized the Algol system, establishing a colony on Amadora. During the Human-Covenant War, the system was discovered by the Covenant, leading to Amadora's attack and subsequent glassing in 2539.

Trivia
Lisbon is presumably named after Lisbon, the capital city of Portugal.