Salome Alexandra (139-67 BCE) — combining the Hebrew Shalom-tziyon ("peace of Zion") and the Greek Alexandra — was the Hasmonean queen of Judea who ruled in her own right (76-67 BCE) after the death of her husband Alexander Jannaeus. Her reign was remembered as the only sustained period of peace and prosperity in late Hasmonean Judea — she allied with the Pharisees, kept Rome at bay, and was praised in the Talmud (Sifra on Leviticus): "In the days of Simeon ben Shetah and Queen Salome, rain fell on the eves of Sabbath only."
Salome Alexandra does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Salome Alexandra reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.