Nasir bin Murshid was the founder of the Yaruba dynasty of Imams of Oman, a member of the Ibadi sect. He ruled from 1624 to 1649. He took power during a chaotic period when the former dynasty had collapsed and the interior of the country was lawless, while the Portuguese held the main coastal ports. In a series of campaigns he established his authority over the Omani tribes.

Sultan bin Saif bin Malik was the second of the Yaruba dynasty of Imams of Oman, a member of the Ibadi sect. He ruled from 1649 to 1679. He completed the work of his predecessor, Nasir bin Murshid, in driving the Portuguese out of Oman. Their last base in Muscat fell to his forces in January 1650. He built up Omani sea power, taking the fight against the Portuguese to their bases in India and East Africa. During his reign the country was peaceful and increasingly prosperous.