SB 6.18.12-13

hiraṇyakaśipor bhāryā
 kayādhur nāma dānavī
jambhasya tanayā sā tu
 suṣuve caturaḥ sutān
saṁhrādaṁ prāg anuhrādaṁ
 hrādaṁ prahrādam eva ca
tat-svasā siṁhikā nāma
 rāhuṁ vipracito ’grahīt
Word for word: 
hiraṇyakaśipoḥ — of Hiraṇyakaśipu; bhāryā — the wife; kayādhuḥ — Kayādhu; nāma — named; dānavī — descendant of Danu; jambhasya — of Jambha; tanayā — daughter; — she; tu — indeed; suṣuve — gave birth to; caturaḥ — four; sutān — sons; saṁhrādam — Saṁhlāda; prāk — first; anuhrādam — Anuhlāda; hrādam — Hlāda; prahrādam — Prahlāda; eva — also; ca — and; tat-svasā — his sister; siṁhikā — Siṁhikā; nāma — named; rāhum — Rāhu; vipracitaḥ — from Vipracit; agrahīt — received.
Translation: 
The wife of Hiraṇyakaśipu was known as Kayādhu. She was the daughter of Jambha and a descendant of Danu. She gave birth to four consecutive sons, known as Saṁhlāda, Anuhlāda, Hlāda and Prahlāda. The sister of these four sons was known as Siṁhikā. She married the demon named Vipracit and gave birth to another demon, named Rāhu.