in the cursed child, after the last time albus and scorpio use the time turner, delphi becomes the daugther of bellatrix and voldemort, implying that bellatrix married voldy.
JK ROWLING SAID THAT SCORPIO MALFOY (DRACO'S CHILD) AND LILY LUNA POTTER (HARRY'S CHILD) MARRY EACH OTHER, WHICH MEANS HARRY AND DRACO ARE RELATED. IN THE CURSED CHILD, THE LAST TIME SCORPIO AND JAMES SIRIUS POTTER USE THE TIME TURNER, DELPHI TURNS OUT TO BE THE DAUGHTER OF BELLATRIX AND VOLDEMORT. BECAUSE HARRY AND DRACO ARE RELATED, AND DRACO'S AUNT IS BELLATRIX, I THINK WE CAN COME TO A CONCLUSION. HARRY IS RELATED TO VOLDEMORT.