Shrila Prabhupad and our previous acharyas have mentioned three Purushottams(best amongst the men), namely Lord Ram, who is Maryada Purushottam, Lord Krishna, who is Lila Purushottam, and Lord Gauranga, who is Prem Purushottam. In Gaurnaga lila, after Sarvabhauma Bhattacharya realized the true identity of Mahaprabhu as the supreme personality of godhead Brajendranandan Krishna himself, lord Gaurahari then mercifully revealed to him his Shadbhuj roop(six armed form), with two hands holding a stick and kamandalu, two hands holding a flute and two hands holding a bow and arrow, thus showing the importance of the three Purushottams. Lord Ram being the Maryada Purushottam, played the role of an ordinary human being and displayed through his own pristine character and conduct, how one should follow dharma and lead a life of righteousness.
Sri Ramachandra appeared as the son of Dasharatha, the king of Ayodhya, who hailed from the dynasty of Maharaja Ikshvaku (also known as Raghu vamsha). Dasharatha had three wives: Kaushalya, Kaikeyi, and Sumitra, but he had no children. On the advice of Maharishi Vashishtha, the king performed a Putra Kameshti Yajna. As a result, the three wives conceived sons. Kaushalya gave birth to Rama and Kaikeyi gave birth to Bharata. Sumitra gave birth to the twins: Lakshmana and Shatrughna