Krsna's father's sister, Kunti, was the mother of the Pandavas, and Kunti was the family daughter-in-law in the Kurus' family. So they were very intimately related

Expressions researched:
"Krsna's father's sister, Kunti, was the mother of the Pandavas, and Kunti was the family daughter-in-law in the Kurus' family. So they were very intimately related"

Sri Caitanya-caritamrta Lectures

Kṛṣṇa's father's sister, Kuntī, was the mother of the Pāṇḍavas, and Kuntī was the family daughter-in-law in the Kurus' family. So they were very intimately related.

Lecture on CC Madhya-lila 20.120 -- Bombay, November 12, 1975:

This is the first question. Arjuna also, when he became perplexed whether he should fight or not, he surrendered to Kṛṣṇa and accepted Him as his spiritual master. Śiṣyas te 'haṁ śādhi māṁ prapannam: (BG 2.7) "Actually I am deviating from my duty, so I am perplexed. What to do? Therefore I know..." Arjuna knew it perfectly well that Kṛṣṇa, although He is friend, He is the Supreme Personality of Godhead. That was known to Arjuna. All the Pāṇḍava family members, they knew. Kurus also, they knew. Otherwise how it was possible to deal with Kṛṣṇa as family member? Kṛṣṇa was... In His human form of life He was related with the Kurus and the Pāṇḍavas by family relationship. Kṛṣṇa's father's sister, Kuntī, was the mother of the Pāṇḍavas, and Kuntī was the family daughter-in-law in the Kurus' family. So they were very intimately related. Duryodhana's daughter was married with Kṛṣṇa's son. So these two families, they were very intimately related. But they knew that Kṛṣṇa is the Supreme Personality of Godhead. You'll read in Kuntī's stotra. She was praying to Kṛṣṇa as the Supreme Personality of Godhead, although Kṛṣṇa was offering His obeisances to the aunt, Kuntī. Similarly, Nārada Muni also, when he entered the royal assembly of Kṛṣṇa in Dvārakā, Kṛṣṇa received him by standing from His throne and taking the dust of his feet, although Nārada knows that He is the Supreme Personality of Godhead. Similarly, Kṛṣṇa, whenever he used to meet Mahārāja Yudhiṣṭhira, He was giving His respect by touching his feet, and Mahārāja Yudhiṣṭhira embracing Him as younger brother. But they knew, all, that He is the Supreme Personality of Godhead.