Gassulawiya was a Hittite queen of the king Mursili II, ruler of the Hittite Empire (New kingdom) ca.
1321–1295 BC (short chronology).
[1] Gassulawiya is known to have had several children including a daughter named Massanauzzi (referred to as Matanaza in correspondence with Ramesses II) married to Masturi, a ruler of a vassal state, and three sons named Muwatalli, Hattusili III and Halpasulupi.
Mursili had further children with a second wife named Tanuhepa.
Obviously by the end of her life Gassulawiya endured severe illness, as she addressed the goddess Lilwanis with a substitute statue, in order to be relieved from her illness.