Ivana Lowell, a scion of the Guinness brewing dynasty, recently went to the funeral of her great-great-great-grandfather, who died in 1868. As the producer of the new Netflix drama about her own family, House of Guinness, she was on set when the opening scenes were filmed in which Sir Benjamin Guinness’s cortege is taken through Dublin. “They had a real actor playing Benjamin lying in the coffin,” Lowell recalled. “It was such a surreal moment, attending his funeral.