Whose name is this? - Page 19

Correct! Rukmaratha was the personal name of Śalya's son, the bhrātā mātulaja of Nakula and Sahadeva.

However, can you tell me which character was called Rukmaratha during the narration of his battles and the response to his death?

It will someone with a golden chariot. Will have to check.

Correct! Droṇa is called Rukmaratha several times in Droṇaparvan.

60. Who was known as Vārddhakṣatri?

Vriddhakshatra was Jayadrath's father...so Jayadrath

Correct!

61. Who was known as Haiḍimbasūnu?

Is it Ghatotkach? Son of Hidimba.

You're on the right track. Hiḍimbā ... Haiḍimba ... Haiḍimbasūnu.

Sūnu means son.

Anjanaparva, son of Hidimba's son.

Correct! Haiḍimba = Hiḍimbā's son, Ghaṭotkaca, and Haiḍimbasūnu = Ghaṭotkaca's son, Añjanaparvan.

62. Who was known as Ārśyaśṛṅgi?

Arsha would be antelope? So it's someone with antelope horns? I know there is Rishi Rishyashringa which means the same.