From Chaitanya Charitamrita:
śrīhaṭṭa-nivāsī śrī-upendra-miśra-nāma vaiṣṇava, paṇḍita, dhanī, sad-guṇa-pradhāna
CC 1.13.56: There was also Śrī Upendra Miśra, a resident of the district of Śrīhaṭṭa. He was a great devotee of Lord Viṣṇu, a learned scholar, a rich man and a reservoir of all good qualities.
sapta miśra tāṅra putra — sapta ṛṣīśvara kaṁsāri, paramānanda, padmanābha, sarveśvara jagannātha, janārdana, trailokyanātha nadīyāte gaṅgā-vāsa kaila jagannātha
CC 1.13.57-58: Upendra Miśra had seven sons, who were all saintly and most influential: (1) Kaṁsāri, (2) Paramānanda, (3) Padmanābha, (4) Sarveśvara, (5) Jagannātha, (6) Janārdana and (7) Trailokyanātha. Jagannātha Miśra, the fifth son, decided to reside on the bank of the Ganges at Nadia.
jagannātha miśravara — padavī ‘purandara’ nanda-vasudeva-rūpa sadguṇa-sāgara
CC 1.13.59: Jagannātha Miśra was designated as Purandara. Exactly like Nanda Mahārāja and Vasudeva, he was an ocean of all good qualities.
tāṅra patnī ‘śacī’-nāma, pativratā satī yāṅra pitā ‘nīlāmbara’ nāma cakravartī
CC 1.13.60: 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.
miśra — vaiṣṇava, śānta, alampaṭa, śuddha, dānta, dhana-bhoge nāhi abhimāna putrera prabhāve yata, dhana āsi’ mile, tata, viṣṇu-prīte dvije dena dāna
CC 1.13.120: Jagannātha Miśra was an ideal Vaiṣṇava. He was peaceful, restrained in sense gratification, pure and controlled. Therefore he had no desire to enjoy material opulence. Whatever money came because of the influence of his transcendental son, he gave it in charity to the brāhmaṇas for the satisfaction of Viṣṇu.
From Chaitanya Bhagavata:
tanna patni saci-nama maha-pati-vrata murti-mati visnu-bhakti sei jagan-mata//CB, Adi 2.139//
TRANSLATION: His wife was the most chaste Sacidevi, the universal mother and personification of devotional service to the Supreme Lord.
These show that the grandfather of Chaitanya Mahaprabhu Upendra Misra was also Vaishnava, and pretty much whole family appears Vaishnava.
However, some believe that they are Shaktas, why do they think so? Is it that Chaitanya Mahaprabhu's family was Shaktas few generations before and then started Vaishnava practices from time of his grandfather? I am interested to know from authentic biographies. If any other biography mentions Chaitanya Mahaprabhu's family as Shakta family, how do they resolve contradictions with the above verses?
