How did Lord Hanuman die

Why is Lord Rama never mentioned in the Mahabharata?

We hear that Rama the son of Dasaratha, O Srinjaya, fell victim to death. His subjects were as enthusiastic about him as a father was about the children of his loins. Endowed with immeasurable energy, innumerable virtues were in him. Rama, the elder brother of Lakshmana, lived in the forest for fourteen years with his wife on the orders of his father. This bull among the people killed fourteen thousand rakshasas in Janasthana for the protection of the ascetics. While he was staying there, the Rakshasa called Ravana and seduced him and his companion (Lakshmana), who kidnapped his wife, the princess of Videha. Like the Three-Eyed Man (Mahadeva), in olden days (the Asura) Andhaka, in anger in battle, killed the perpetrator of Pulastya's race, who had never before been defeated by an enemy. Indeed, the mighty armed Rama in battle slew this descendant of Pulastya's race with all his relatives and followers, this Rakshasa, who was unable to be killed together by the gods and Asuras, these wretches who were the gods and brahmins was a thorn in the side. As a result of his loving treatment of his subjects, the Heavenly Ones worshiped Rama. He filled the whole earth with his accomplishments and was greatly welcomed even by the heavenly Rishis. Youthful in shape, dark blue in color, red eyes possessed by the tread of an angry elephant, arms reaching down, knees beautiful and massive, Leonine shoulders, great strength and loved by all creatures, Rama ruled his kingdom for eleven thousand years. His subjects always pronounced his name. While Rama was ruling his kingdom, the world became extremely beautiful. Rama finally took his four kinds of subjects and went to heaven after building his own lineage, which consisted of eight houses on earth. When even he died, O Srinjaya, who was superior to you on the four cardinal virtues and superior to your son, you should not complain and say, "Oh, Swaitya, oh, Swaitya" for your son who made and made no sacrifice no sacrificial gift.