Grogu, also known as Baby Yoda among Star Wars fans, is a character from the Disney+ television series The Mandalorian. He is of the same species as Jedi Master Yoda, and the two share many similarities. However, it is unclear if Grogu is related to Yoda or not.
What we do know is that Grogu was born around 50 years before the Battle of Endor ( Return of the Jedi), making him approximately 900 years old by the time of The Mandalorian. In his youth, Grogu was trained by Luke Skywalker in the ways of the Force at a hidden Jedi temple on Coruscant. However, after order 66 was enacted and Darth Vader began hunting down and killing all the Jedis, Grogu went into hiding.
For many years he remained hidden until he was finally discovered by Din Djarin aka “The Mandalorian”. Together they have been on many adventures across the galaxy and Grogu has continued to grow stronger in his powers.
So while we don’t know for sure if Grogu is related to Yoda, we do know that they are of the same species and have similar Force abilities.