Complex sentence: Balangantrang was also the grandson of Wretikandayun from his second son, Resi Guru Jantaka or Rahyang Kidul, and was also considered unfit to succeed Wretikandayun because he suffered from a hernia.
Split into simpler sentences: Balangantrang was also the grandson of Wretikandayun from his second son, Resi Guru Jantaka or Rahyang Kidul. He also was considered unfit to be the successor of Wretikandayun because he suffered from a hernia.