Sorghaghtani Beki (c. 1190-1252) was a Nestorian Christian Mongol princess — daughter-in-law of Genghis Khan, mother of Kublai Khan and three other Great Khans (Möngke, Hulagu, Ariq Böke).
Featured in The Secret History of the Mongols.
Sorghaghtani 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 Sorghaghtani reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.