‘Outlander: Blood of My Blood’ Family Tree Explained, From the MacKenzie Clan to the Beauchamp Line

‘Outlander: Blood of My Blood’ asks longtime fans of the flagship series to rethink everything they thought they knew about how Jamie and Claire came to be. The prequel reveals that Claire’s parents, long believed to have died in a car accident, actually traveled back in time to eighteenth century Scotland. That twist alone reshapes the family tree audiences have followed for more than a decade.

Untangling who belongs to which clan, and how those clans eventually collide, takes some patience. The story splits cleanly into three groups, Jamie’s MacKenzie side, Jamie’s Fraser side, and Claire’s Beauchamp family, and each branch carries its own weight in the larger saga.

The MacKenzie Clan and Jamie’s Maternal Line

In the Outlander books, the MacKenzie siblings are made up of two boys and four girls, Colum, Dougal, Jocasta, Ellen, Janet, and Flora, though baby Flora died in infancy. Janet, who later becomes the namesake for Ellen’s future daughter Jenny, appears only briefly in ‘Blood of My Blood,’ showing up alongside her sisters at her father’s funeral and at the Great Gathering.

Ellen MacKenzie sits at the center of this branch. She was her father’s favorite and he promised before his death that she would never have to marry except for love, but her brothers Colum and Dougal, each maneuvering to become the new laird, have little interest in honoring that vow. Known for her beauty, Ellen becomes a pawn used to broker alliances with rival clans, a problem that grows worse once she falls for Brian Fraser, the son of her family’s enemy.

Colum, the eldest son, would ordinarily inherit the lairdship without question. But he struggles with a debilitating disease that leaves him with a limp, and he leans on intelligence and diplomacy rather than force, sometimes at his siblings’ expense. His brother Dougal is the more combative counterpart, and their sister Jocasta rounds out the trio of MacKenzie siblings featured prominently in the new series. Jocasta prides herself on being a dutiful daughter who married for the family’s advantage, though a chance meeting with Murtagh Fitzgibbons Fraser at the Great Gathering seems to stir something new in her.

The younger versions of familiar faces round out this side of the tree as well. Rupert MacKenzie and Angus Mhor, cousins or extended family members who appear as adults in the original ‘Outlander,’ show up as meddlesome children running around Castle Leoch, and their actual biological connection to Red Jacob MacKenzie remains unclear.

Brian Fraser and the Fraser Bloodline

Jamie’s father, Brian Fraser, comes from the family that gives the Highland saga its name. Tony Curran joined the cast as Lord Lovat, Jamie Fraser’s grandfather, expanding Clan Fraser’s presence in the prequel. Brian’s path to Ellen is not a straightforward one, since the two come from clans that have been at odds for generations.

Murtagh Fitzgibbons Fraser plays a quieter but important role in this branch. He is a cousin to Brian and the future godfather to Jamie, technically part of Brian’s extended family rather than a direct ancestor, though his bond with the family runs deep. Murtagh often hides his real feelings behind humor, including the fact that he is secretly in love with Ellen, a detail that adds a layer of quiet heartbreak to his younger years.

It is Murtagh, notably, who makes the pivotal MacKenzie and Fraser romance possible in the first place. He is the reason Brian Fraser is able to sneak into the gathering held for Red Jacob, the moment where Brian first meets Ellen MacKenzie. Once the two marry, the union eventually produces Jamie, along with a daughter named Jenny and two sons, Robert and William, who both died young.

The household around Brian and Ellen fills out with familiar names as well. A lady’s maid named Mrs. Fitzgibbons has a nephew who happens to be the fan favorite Murtagh Fitzgibbons Fraser, giving longtime viewers another small thread connecting the generations. Ned Gowan, a legal advisor to the MacKenzie brothers, also appears in this stretch of the story, though he is not blood kin to either clan.

Claire’s Parents and the Beauchamp Family Tree

The second love story in ‘Blood of My Blood’ unfolds decades later and an ocean away. Hermione Corfield plays Julia Moriston, Claire’s mother, an independent woman who dreams of a university education and voting rights, whose life changes during the First World War when she meets Henry. Together, Julia Moriston and Henry Beauchamp are the parents whose story runs parallel to Ellen and Brian’s, set roughly two centuries apart from the Highlands narrative.

There is a small industry in-joke buried in this casting. Hermione Corfield, who plays Julia, once auditioned to play Claire and Jamie’s daughter Brianna on the original ‘Outlander,’ a detail she shared with Glamour. Jeremy Irvine, known to many from ‘Mamma Mia! Here We Go Again,’ plays Henry, and the season traces why the couple ends up thrown back in time together in the first place.

Claire herself does not appear in the prequel as a character, but her presence looms over every episode. Born to Julia and Henry, Claire Beauchamp is the time traveling heroine at the center of the flagship series, and while she is absent from ‘Blood of My Blood,’ understanding her parents’ story is essential to understanding hers. She is later married to Frank during World War II before circumstances send her back to the eighteenth century, where she eventually meets Jamie.

Where the Two Family Trees Finally Meet

Season one closes with the Beauchamp storyline hanging on a literal cliffhanger. The finale ended with Julia and Henry standing at the mystical stones, hoping to travel back to their own time before being caught. Season one ultimately culminated with the two reuniting at the standing stones of Craigh na Dun, hoping to return home to their young daughter, Claire.

Season two picks up almost immediately from that moment, and the answer to who made it through the stones has already been revealed. The new season opens with a distraught Julia alone with their baby, while Henry must grapple with his own mental health as he searches for a way back to her. Meanwhile, the Fraser and MacKenzie side of the tree is heading toward open conflict rather than quiet courtship.

That shift in tone marks a real turning point for Ellen and Brian’s relationship. Their romantic escape from their feuding families is cut short once fiery crosses are lit and the 1715 Jacobite Rising begins, pulling both clans into war and forcing Brian to fulfill his obligation to fight. Showrunner and executive producer Matthew B. Roberts has said the cast and crew poured extraordinary passion into the first season, and that the hope is for audiences to grow just as attached to these new couples as they did to Jamie and Claire.

Season two of ‘Outlander: Blood of My Blood’ is set to premiere on September 18 on Starz, giving viewers a chance to see how these two intertwined bloodlines survive a war that will eventually shape the Highlands their children inherit. With Ellen and Brian’s fate tied to the Jacobite cause and Henry and Julia separated by centuries, which family’s storyline are you more invested in seeing play out this season.