Valmiki Ramayana Aranya Kanda Sarga 70 Shloka 13

अयम् he, रामो नाम by name Rama, जनैः by people, श्रुतः famous, इक्ष्वाकुदायादः an heir of the Ikshvaku family, माम् me, अस्य his, अवरजं भ्रातरम् as his younger brother, लक्ष्मणम् Lakshmana, विद्दि you may know me,

Here is Rama, an heir of the Ikshvaku family, known to the people and I am his younger brother Lakshmana for your information.