Herbert Walter 'Herb' Powell is the former owner of Powell Motors in Detroit, Michigan. He is the biological son of Abe Simpson II and a carnival worker named Gaby, as well as the long-lost, seldom-seen paternal half-brother of Abbey and Homer Simpson. Ashamed out of what he did, Abe and Gaby took baby Herb to the Shelbyville Orphanage, where he was adopted by the Powell family. It wouldn't be until four decades later that Herb would be contacted by his half-brother Homer Simpson, where he learned who his biological family members were. When Herb was introduced, he was a successful but very lonely man. When Herb found out Homer was his long-lost half-brother, he was overjoyed. Upon meeting his Simpsons family for the first time, he made sure they felt right at home. He was very welcoming, charming, and friendly when they arrived and got along great with Marge and the kids. His relationship with Homer started off great but went downhill after the car he designed ruined his company. However, after he gained wealth again after Homer lent him his money, he forgave him and was happy to call Homer his 'brother', which was what both men had really wanted. (Source: Fandom.com, CC BY-SA)