Even though none of the Avengers are blood-related, we have tried to create an Avengers Family Tree to bring all their respective families under one chart. As you see, Steve Rogers was closely connected to Howard Stark and Peggy Carter, and later with Sharon Carter from S.H.I.E.L.D. Howard was Tony Stark's father, and as the family tree illustrates, Tony has good terms with Pepper Potts, James Rhodes, Peter Parker, Vision, and Ultron. Vision went on to have a relationship with Wanda Maximoff. We also have other important Avengers, like Peter Quill, Groot, Stephen Strange, Thor, Scott Lang, Hope Van Dyne, T'Challa, Bruce Banner, Natasha Romanoff, Clint Barnes, and more.