The Skywalker Lightsaber was a blue bladed and a self-constructed lightsaber that was designed by Anakin Skywalker and used by him after he lost his first one.
The sword passed throughout the generations of the Skywalker family before landing in Rey Skywalker's possession. However, the Lightsaber was destroyed when Rey and Ben fought over possession of it in Snoke's chamber. Rey reconstructed it and shared the sword with him during their fight against Palpatine.
Rey later buried the lightsaber in the Lars homestead.