An endoluminal prosthesis comprises a prosthetic trunk comprising a trunk lumen extending therethrough, a wall, an anastomosis in the wall, and a first fenestration in the wall, wherein the prosthetic trunk has a circumference. The endoluminal prosthesis further comprises a prosthetic branch comprising a branch lumen extending therethrough. The branch lumen is in fluid communication with the trunk lumen through the anastomosis. The prosthetic branch is disposed longitudinally along and circumferentially about the prosthetic trunk.