Pyramid G3-a

G3-a (also G3a, G3 c, GIIIa) is one of the three pyramid companions of the Pyramid of Menkaure. It is located on the south side of the Menkaure pyramid in the Giza Necropolis. It is the easternmost of the three pyramids of the queens. The pyramid was built during the Fourth Dynasty of Egypt, presumably for one of the wives of Menkaure. The American archaeologist George Andrew Reisner was "confident" that the structure housed Khamerernebty II, but this is far from certain.

It is a true pyramid, with a base that is 44 m square; its original height was 28.4 m. The structure has a T-shaped chamber carved out of the bedrock, to which an entrance opens on the north face of the structure. The American archaeologist Mark Lehner argues that this is akin to the layout of a satellite or ka pyramid. The fact that the structure once contained a pink granite sarcophagus, however, has led scholars to speculate that it may have been reused as a queen's burial tomb, or that it served as a chapel where the body of Menkaure was mummified.