Tar-Telperiën ruled Númenor for one hundred and seventy-five years, and was succeeded by her nephew, the son of her younger brother Isilmo, who ruled as Tar-Minastir.
It was the custom among the earlier Rulers of Númenor that they should give up the Sceptre to their Heir before the end of their lives. As Tar-Telperiën both ceased to rule and died in the same year, II 1731, it might appear that she broke this tradition. In fact, she did abdicate her rule before the end of her life, but so soon beforehand that she died in the same year. It was not until the time of Tar-Atanamir, three generations later, that the Rulers abandoned this tradition and began to rule until their deaths.