Princess Royal's Battery

Princess Royal's Battery is a fortification built on Willis's Plateau in the northern section of Upper Rock Nature Reserve. The structure features underground chambers, ammunition storage areas, and shell-hoisting mechanisms that form part of Gibraltar's northern defense system.

The battery was originally called Willis' Battery when built in 1705, then renamed after Princess Charlotte in the late 1700s. It played a key role during Gibraltar's siege and witnessed major military developments throughout the 18th century.

The name honors Princess Charlotte, daughter of King George III, reflecting British presence in the region. Visitors can see how the structure shaped defensive strategies and military life during its operational period.

The site is best visited during daylight when natural light illuminates the underground structures. The terrain requires sturdy footwear and caution when exploring steep paths and narrow chambers.

The battery was one of the first to use Koehler's depressing gun-carriage, a revolutionary weapon that allowed cannons to fire at steeper angles downward. This innovation significantly changed defensive tactics during the conflict.

Location: Gibraltar

Inception: 1705

GPS coordinates: 36.14618,-5.34617

Latest update: December 14, 2025 11:43