Three Flags
The National Park Service flys three flags over the fortifications at San Juan National Historic Site: the Burgundy Cross, the flag of the Commonwealth of Puerto Rico, and the flag of the United States of America.
The Burgundy Cross was the Spanish military flag that flew here during most of the Spanish Colonial period. It was adopted in 1506 by Philip the Handsome, King of Castile, to honor his mother, Mary Duchess of Burgundy. At that time, Burgundy was a territory of Spain.
Marker is on Bulevar del Valle.
Courtesy hmdb.org
