How many famous Ivar's are they?

There are a few notable figures named Ivar, but one of the most famous is Ivar the Boneless, a legendary Viking leader and warrior from the 9th century. He is known for his role in the Viking invasions of England and is a prominent character in Norse sagas and modern adaptations, such as the TV series "Vikings." Additionally, there may be contemporary figures or businesses named Ivar, such as Ivar's Seafood Restaurants in the Pacific Northwest, but they are not as historically significant. Overall, the most famous Ivar is likely Ivar the Boneless.