Fully British
Both Kate Middleton, who was born in Berkshire, England, and Prince William, who was born in London are fully British. Middleton’s family has ties to British aristocracy going back until 1926. Their three children all have deep English roots.
British American
Baby Archie’s father is fully British, but his mother Meghan was born in Los Angeles. She is also of African American descent. That means that Archie is multi-racial as well, in addition to being both an American and British citizen.