J.K. Rowling’s only child with her first husband, Jorge Arantes, is named Jessica.
Jessica Isabel Rowling Arantes was born in July 1993 in Portugal. Rowling had married Portuguese television journalist Jorge Arantes in 1992, and the couple separated in 1993. Rowling later returned to the United Kingdom with her daughter and settled in Edinburgh.
Jessica’s name is sometimes confused with Mackenzie, another of Rowling’s children. Mackenzie Jean Rowling Murray was born during Rowling’s marriage to her second husband, Neil Murray. Rowling also has a son named David, so Jessica is specifically the child from her first marriage.
The family details are biographical facts, while many internet summaries compress or rearrange the timeline. The key distinction is that Jessica was born in Portugal in 1993 and is the daughter Rowling had with Jorge Arantes.