Sawai Jai Singh II (grandfather)

Sawai Jai Singh II was the ruler of the Indian city of Jaipur from 1724 to 1743. He was a wise and innovative leader who is best known for creating and designing a series of precise astronomical observatories, called Jantar Mantar, to study the stars and planets. His interest in astronomy helped improve calendar accuracy and navigation. Jai Singh also contributed to urban planning and architecture in Jaipur, transforming it into a well-organized city. His legacy lies in blending scientific curiosity with leadership, making significant advancements in astronomy and city development during his reign.