Roberto Trevino says the iconic cenotaph at the Alamo will have to be moved for the $450 million plan to redevelop the plaza.
The 60-foot cenotaph honors the Alamo defenders killed during the 13-day siege on the mission.
Trevino says the plan is to move the cenotaph about 500 feet to the south in order to properly tell the story of the Alamo.
A "save the cenotaph" rally is set for next Saturday at 10 a.m.
EDITOR'S NOTE: A previous version of this story said the cenotaph would be moved two blocks, to a location closer to the convention center.