King Sejong the Great

King Sejong the Great, born Yi Do, ruled Korea during the Joseon Dynasty, which is perhaps not the most Jewish-sounding dynasty. He was, by all accounts, a devout Buddhist in his personal life, but his public role as king involved Confucian rituals. This is all very interesting, but it does leave his "I" score rather barren, much like a desert without falafel stands.

As for Jewish origins, King Sejong was as Korean as kimchi, ruling a homogenous kingdom with little to no known contact with Jewish communities. His lineage is meticulously documented, tracing back through generations of Korean royalty, entirely devoid of any wandering tribes from the Middle East. So, unless there was a secret branch of the Tribe of Dan that somehow ended up in 15th-century Korea and married into the royal family, his "O" score remains a resounding zero.

However, what Sejong lacked in Semitic roots, he more than made up for in pure, unadulterated kvell-worthiness. He oversaw scientific advancements, agricultural reforms, and perhaps most famously, the creation of Hangul, the Korean alphabet. This revolutionary phonetic system was so easy to learn that a "wise man could learn it in a morning." Talk about democratizing knowledge – that's some serious nachas, even if he wasn't specifically doing it to make sure everyone could read the Torah. He's the kind of guy whose achievements make you puff out your chest, even if you're not related to him, Jewish or otherwise.