The chart follows the seven novels to the epilogue
The chart covers the seven Harry Potter novels by J.K. Rowling, published by Bloomsbury from 1997 to 2007, and stops at the epilogue of Harry Potter and the Deathly Hallows, set nineteen years after the final battle. It is drawn around Harry, the index person, and includes four families, the Evans family of his mother, the Potters, the Dursleys and the Weasleys.
Films, plays and later writing are left out, and so are the details that appear only in them. James Potter’s parents are not named in the novels and are not drawn. Hermione and her children with Ron, Bill’s wife Fleur and the wider Black family would each need a chart of their own.
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Blood, marriage and guardianship on one chart
At the top right are Lily’s parents, the Evans couple, whose first names the novels never give. Their daughters are Lily, who married James Potter, and Petunia, who married Vernon Dursley. James and Lily are the only people with years on the chart, because their headstone in Godric’s Hollow gives them, 1960 to 1981. Their son Harry is drawn below them, and Petunia and Vernon’s son Dudley sits to the right.
On the left are Arthur and Molly Weasley and their seven children in birth order, Bill, Charlie, Percy, the twins Fred and George, Ron and Ginny. Fred, who dies in the Battle of Hogwarts, carries an X with no year. In the epilogue Harry and Ginny are married with three children, James Sirius, Albus Severus and Lily Luna, who form the bottom row.
Blood relationships and guardianship use different lines
The chart sorts Harry’s relationships into two groups. Blood and marriage use the standard lines of the notation. The people who cared for him use two other lines, so a reader can see at once who raised him and who he is related to.
Keeping the two groups apart matters for any child raised outside the birth family. A chart drawn from blood ties alone would show Harry with an aunt, an uncle and a cousin, and say nothing of the years he spent in their house. A chart drawn from care alone would lose the parents he never knew. The notation lets both stand on one page, and the key tells the reader which line is which.
| Relationship | Line on the chart | In the novels |
|---|---|---|
| Parents and child | A solid line from the couple | James and Lily Potter are Harry’s parents |
| Sisters | Two solid lines from the Evans couple | Lily and Petunia are sisters |
| Twins | Two lines that leave from one point | Fred and George Weasley are twins |
| Marriage | A couple line between the partners | Harry and Ginny are married in the epilogue |
| Raised by relatives | A dotted line from the Dursleys | Petunia and Vernon raise Harry at number four, Privet Drive |
| Godfather | A dashed line with an arrow, a line of the editor’s own | Sirius Black is Harry’s godfather |
What the genogram shows about Harry’s family
The facts first. Harry loses both parents as a baby, and his only living blood relatives are his aunt Petunia and her son Dudley. His godfather enters the story in the third book and dies in the fifth. By the epilogue, marriage has joined him to a family of nine.
What follows is interpretation. Drawn on one page, the chart shows a boy raised outside the family he belongs to by birth, in a household where the parents favour their own son, and later drawn into the Weasleys before any marriage makes it formal. A genogram reader would also notice how names repeat. Harry’s three children carry the names of his parents, his godfather and two headmasters of Hogwarts, a pattern of naming that a genogram makes easy to see.
Draw a family from a novel in the same order
The choices made for this chart apply to any family in a book.
- Choose the books and the moment
Name the books you use and the point in the story the chart describes, such as the end of the last novel.
- Choose one person at the centre
Mark that person as the index person and draw the families joined to them by birth and marriage.
- Draw the guardians separately
Use the dotted foster line for a child raised by others, and a line of your own for a role such as godparent.
- Leave unknown facts blank
Draw a person whose name or dates the books do not give, and leave the gap visible.
Common questions
Why only James and Lily have years
The novels print their years of birth and death on their headstone in Godric’s Hollow. They give no other year of birth outright, so the chart leaves the rest blank rather than working them out.
How the Dursleys are drawn as guardians
The dotted foster line is the notation for a child raised by people other than the birth parents. The novels describe a family arrangement rather than formal fostering, and the line records only that the Dursleys raised Harry.
Whether this Harry Potter genogram follows the films
No. It follows the seven novels, so details that appear only in the films or in later writing are not drawn.
Using the chart for a class
Draw your own version and name the novels as your source. The genogram symbols guide explains each line, and the guide on how to write a genogram paper shows how to set a chart as a figure.
Sources and methodology
We make Genogram Builder. We used the references below for this guide. Last checked on 5 November 2026.
Draw a family from a novel, or your own, on a blank sheet in the editor. No account is needed to begin.
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