Trishira
The War of Lanka by Sahibdin. It depicts the monkey army of the protagonist Rama (top left, blue figure) fighting the demon-king of the king of Lanka, Ravana in order to save Rama's kidnapped wife Sita. The painting depicts multiple events in the battle against the three-headed demon general Trisiras, in bottom left - Trisiras is beheaded by the monkey-companion of Rama - Hanuman.
Personal information
Parents	Ravana (father) Dhanyamalini (mother)
Siblings	Meghanada Atikaya Akshayakumara Narantaka Devantaka

Trishira (Sanskrit: त्रिशिर, IAST: triśira, lit. he who has three heads) was a Rakshasa (a demon), and reference to him is found in the Ramayana. He was one of the six sons of Ravana, and his other brothers were Meghanada, Atikaya, Akshayakumara, Narantaka and Devantaka.^[1]

In Ramayana

The Ramayana tells that he engaged Hanuman in a fight and hit him with a number of arrows. At this Hanuman told him that the arrows were nothing but like flowers being showered on his body. Thereafter, a duel ensued, in which Hanuman killed Trishira.^[2]