Valmiki Ramayana Bala Kanda Sarga 70 Shloka 36
Original Shlokaच्यवनं तु नमस्कृत्य राजपुत्री पतिव्रता। पतिशोकातुरा तस्मात्पुत्रं देवी व्यजायत।।1.70.36।।
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राजपुत्री princess, पतिव्रता chaste and virtuous one, पतिशोकातुरा afflicted with the sorrow due to loss of her husband, देवी that eldest queen, च्यवनम् Chyavana, नमस्कृत्य having saluted him, तस्मात् for that husband, पुत्रम् son, व्यजायत gave birth.
This eldest queen who was a devoted wife, afflicted with sorrow due to loss of her husband gave birth to a son by the grace of Chyavana.