Banzhao (班昭, c. 45-c. 120 CE) was the Han Dynasty historian and court teacher — daughter of Ban Biao, sister of Ban Gu and General Ban Chao. Tutored the Empress Deng.
Among the most important Han literary figures.
Banzhao 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 Banzhao reduce to 4, The Builder. This is a traditional interpretive system, not a factual claim about the name.