The Line of Succession, from King Maegor II

Aegon (Maegor's son)
Aemy (Maegor's daughter)
Rhaena (Maegor's daughter)
Daenya (Maegor's daughter)

Maelys (Maegor's brother)
Valarr (Maegor's nephew, Maelys' son)
Miana (Maegor's niece, Maelys' daughter)
Aemon (Maegor's brother)
Benjen (Maegor's nephew, Aemon's son)
Arenya (Maegor's sister)

Gaemon (Maegor's uncle)
Daeron (Maegor's cousin, Gaemon's son)
Varryn (Maegor's cousin, Gaemon's son)
Daegar (Maegor's cousin, Gaemon's son)
Helaena (Maegor's cousin, Gaemon's daughter)
Adara (Maegor's cousin, Gaemon's daughter)
Selwyn Dondarrion (Maegor's second-cousin, Adara's son)
Orys Dondarrion (Maegor's second-cousin, Adara's son)

Bertram (Maegor's uncle)
Lucerys (Maegor's uncle)
Orys (Maegor's uncle)
Malcolm (Maegor's uncle)

Jaehaerys (Maegor's half-uncle)
Aenar (Maegor's cousin, Jaehaerys' son)
Rhaegar (Maegor's second-cousin, Aenar's son)
Visenya (Maegor's second-cousin, Aenar's daughter)
Elseyris (Maegor's second-cousin, Aenar's daughter)
Baelor (Maegor's cousin, Jaehaerys' son)
Valarr (Maegor's second-cousin, Baelor's son
Aerion (Maegor's cousin, Jaehaerys' son)
Daena (Maegor's cousin, Jaehaerys' daughter)
Arthur Harroway (Maegor's second-cousin, Daena's son)
Lyonel Harroway (Maegor's second-cousin, Daena's son)
Daemon Harroway (Maegor's second-cousin, Daena's son)
Catelyn Harroway (Maegor's second-cousin, Daena's daughter)

Laena (Maegor's aunt, Jaehaerys' sister)
Rhaena (Maegor's aunt, Jaeherys' sister)
Edric Velaryon (Maegor's cousin, Rhaena's son)
Jacaerys Velaryon (Maegor's second-cousin, Rhaena's grandson)
Monterys Velaryon (Maegor's second-cousin, Rhaena's grandson)
Daenerys Velaryon Maegor's second-cousin, Rhaena's granddaughter)
Janos Velaryon (Maegor's cousin, Rhaena's son)