Passage: In 1918, Jinnah married his second wife Rattanbai Petit ("Ruttie"), 24 years his junior. She was the fashionable young daughter of his friend Sir Dinshaw Petit, and was part of an elite Parsi family of Bombay. There was great opposition to the marriage from Rattanbai's family and the Parsi community, as well as from some Muslim religious leaders. Rattanbai defied her family and nominally converted to Islam, adopting (though never using) the name Maryam Jinnah, resulting in a permanent estrangement from her family and Parsi society. The couple resided at South Court Mansion in Bombay, and frequently travelled across India and Europe. The couple's only child, daughter Dina, was born on 15 August 1919. The couple separated prior to Ruttie's death in 1929, and subsequently Jinnah's sister Fatima looked after him and his child.Relations between Indians and British were strained in 1919 when the Imperial Legislative Council extended emergency wartime restrictions on civil liberties; Jinnah resigned from it when it did. There was unrest across India, which worsened after the Jallianwala Bagh massacre in Amritsar, in which British troops fired upon a protest meeting, killing hundreds.  In the wake of Amritsar, Gandhi, who had returned to India and become a widely respected leader and highly influential in the Congress, called for satyagraha against the British. Gandhi's proposal gained broad Hindu support, and was also attractive to many Muslims of the Khilafat faction. These Muslims, supported by Gandhi, sought retention of the Ottoman caliphate, which supplied spiritual leadership to many Muslims.  The caliph was the Ottoman Emperor, who would be deprived of both offices following his nation's defeat in the First World War. Gandhi had achieved considerable popularity among Muslims because of his work during the war on behalf of killed or imprisoned Muslims. Unlike Jinnah and other leaders of the Congress, Gandhi did not wear western-style clothing, did his best to use an Indian language instead of English, and was...

Question: From whose family was their great opposition?
Rattanbai's family