|Book(s)|| A Feast for Crows (mentioned)|
A Dance with Dragons (appears)
Jennelyn has wispy yellow hair.
A Feast for Crows
Nymeria Sand was abed with Jennelyn and her sister Jennelyn when news of Prince Oberyn Martell's death reached her. Princess Arianne Martell recalls spending time at the Water Gardens with the Jennelyn and Jeyne in her youth.
A Dance with Dragons
In Volantis, Prince Quentyn Martell thinks of Jennelyn and Jeyne. He recalls that they were a pair of tawny young maidens who loved hawking, hunting, climbing rocks and making him blush. He remembers one of them gave him his first kiss, though he never knew which one.
Jennelyn and her sister are present at the feast at Sunspear when Ser Balon Swann of the Kingsguard arrives to deliver the head of Ser Gregor Clegane. She and her sister refuse to drink when Ricasso raises a toast to King Tommen Baratheon.