Srimati Sacidevi

His wife, Śrīmatī Śacīdevī, was a chaste woman highly devoted to her husband. Śacīdevī’s father’s name was Nīlāmbara, and his surname was Cakravartī.
PURPORT
Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura writes in his Anubhāṣya, “In the Gaura-gaṇoddeśa-dīpikā (104) it is mentioned that Nīlāmbara Cakravartī was formerly Garga Muni. Some of the family descendants of Nīlāmbara Cakravartī still live in the village of the name Magḍobā, in the district of Faridpur, in Bangladesh. His nephew was Jagannātha Cakravartī, also known as Māmu Ṭhākura, who became a disciple of Paṇḍita Gosvāmī and stayed at Jagannātha Purī as the priest of Ṭoṭā-gopīnātha. Nīlāmbara Cakravartī lived at Navadvīpa, in the neighborhood of Belapukuriyā. This fact is mentioned in the book Prema-vilāsa. Because he lived near the house of the Kazi, the Kazi was also considered one of the maternal uncles of Lord Caitanya Mahāprabhu. The Kazi used to address Nīlāmbara Cakravartī as kākā, or ‘uncle.’ One cannot separate the residence of the Kazi from Vāmanapukura because the tomb of the Kazi is still existing there. Formerly the place was known as Belapukuriyā, and now it is called Vāmanapukura. This has been ascertained by archeological evidence.”
(CC Adi 13.60)

When mother Śacī was thus overwhelmed in maternal love for Lord Caitanya Mahāprabhu, she became transformed with happiness, fear and humility, as well as bodily symptoms.
PURPORT
These verses indicate that mother Śacī, born in the family of Nīlāmbara Cakravartī, used to worship Lord Viṣṇu even before her marriage. As stated in the Bhagavad-gītā (BG 6.41):
prāpya puṇya-kṛtāṁ lokān uṣitvā śāśvatīḥ samāḥ
śucīnāṁ śrīmatāṁ gehe yoga-bhraṣṭo ’bhijāyate
“The unsuccessful yogī, after many, many years of enjoyment on the planets of the pious living entities, is born into a family of righteous people, or into a family of rich aristocracy.” Mother Śacī, a nitya-siddha living entity, is an incarnation of mother Yaśodā. She appeared in the house of Nīlāmbara Cakravartī and was everlastingly engaged in the service of Lord Viṣṇu. Later she directly had as her child Lord Viṣṇu, Śrī Caitanya Mahāprabhu, and she served Him from the day of His appearance. This is the position of nitya-siddha associates. Śrī Narottama dāsa Ṭhākura therefore sings: gaurāṅgera saṅgi-gaṇe nitya-siddha kari māne. Every devotee should know that all the associates of Śrī Caitanya Mahāprabhu—His family members, friends and other associates—were all nitya-siddhas. A nitya-siddha never forgets the service of the Lord. He is always engaged, even from childhood, in worshiping the Supreme Personality of Godhead.
(CC Madhya 3.167)

LORD SRI CHAITANYA MAHAPRABHU, the Great Apostle of love of God and the Father of introducing congregational chanting of the holy name of the Lord, advented Himself at Sridham Mayapur a quarter in the then city of Nabadwipa in Bengal on the Phalgooni Purnima evening in the year 1407 Shakabda (corresponding to Christian era 1486 February.)
His father Sri Jagannath Misra, a learned Brahmin, hailing from the district of Shylet came to Nabadwipa as a student because at that time Nabadwipa was considered to be the centre of education and culture and he domiciled on the bank of the Ganges after marrying Srimati Sachi devi a daughter of Srila Nilambar Chakrabarty, the great learned scholar of the then Nabadwipa.
(SB Volume 1 Introduction)

First Lord Kṛṣṇa made His parents and elders appear. Then Kṛṣṇa Himself, with the sentiments and complexion of Rādhikā, appeared in Navadvīpa, like the full moon, from the womb of mother Śacī, which is like an ocean of pure milk.
(CC Ādi 4.271-272)

Then Īśāna cleaned the entire room and honored all the remnants. Īśāna is the most fortunate person within the fourteen worlds, for he served mother Śacī throughout his entire life.
Commentary – Īśāna, the Lord’s domestic servant, gathered together the scattered rice and cleaned the room. There is no limit to the good fortune of Īśāna. He spent his entire life serving the Lord’s mother. By serving the Lord’s mother and wife even after the Lord accepted sannyāsa, the servant Īśāna became greatly fortunate among the fortunate servants of the Lord in this world.
(Sri Caitanya Bhagavata Madhya-khaṇḍa 8.073-74)