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.
Accession
Sultan bin Saif was the cousin of the Imam Nasir bin Murshid bin Sultan al Ya'Aruba, who had founded the Yaruba dynasty in 1624. The Imam Nasir died on 14 April 1649 and was buried at Nizwa. He left no sons. The notables who gathered at Rustaq on the day he died selected Sultan bin Saif and proclaimed him Imam. The succession appears to have been undisputed.
War with the Portuguese
When Nasir died, the Portuguese, who had once occupied several ports along the coast, now only had a tenuous hold on Muscat. Sultan bin Saif was resolved to finish the task of expelling them from Oman, but first built up his own fleet. He started his campaign against Muscat towards the end of 1649. Although Sultan gathered a large force outside the port of Muttrah, next to Muscat, the town was captured by a small group that made a surprise attack at night. The Portuguese commander took refuge in Fort Capitan. On 28 January 1650 it surrendered. The Omanis also captured two Portuguese naval vessels that were anchored in the port of Muttrah. Following this the Portuguese continued sporadic war at sea, but made no serious effort to recapture Muscat. Sultan bin Saif initiated a naval offensive against the Portuguese bases in India and on the east coast of Africa. He added captured ships to his navy, which became increasingly powerful. Sultan launched a raid on the Portuguese at Mumbai in India in 1655. The Omani fleet attacked the Portuguese in Mumbai in 1661 and Diu in 1668, 1670 and 1676. Sultan received a petition from the people of Mombasa on the East African coast asking for help in removing the Portuguese and offering to accept Omani sovereignty in return. A force was dispatched and blockaded the fort of Mombasa for five years before it surrendered. An Arab governor was installed. However, the Portuguese returned soon after and recaptured the town.
Trade and construction
The Dutch had a factory at Gombroon, now Bandar Abbas, on the Persian side of the Strait of Hormuz. After the fall of Muscat in 1650 they received large shipments of goods from the Netherlands and greatly expanded their trade in the Persian Gulf region. In 1651 Sultan bin Saif visited Gombroon in person, and offered to open a land route for the Dutch traders via Abu Dhabi and Qatif to Basra by which the Dutch could avoid paying Persian customs duties. The Dutch politely declined. In 1659 Sultan bin Saif was visited by Colonel Rainsford of the English East India Company, seeking to negotiate a lease on the port of Muscat. Sultan refused this request. Oman became the strongest sea power in the western Indian Ocean. Trade mounted from Omanis based in Africa, bringing wealth into the country. Sultan bin Saif's trading activity drew criticism from the religious leaders, who felt that this was inappropriate for an Imam. , built by Sultan bin Saif Some of the new wealth was used to fund construction of the aflajunderground water system. Sultan bin Saif built the falaj daris from Izki to Nizwa, the largest falaj in the country. He erected the huge round tower of the Nizwa Fort. The structure, high, was built on an earlier fort that had itself been assembled from several smaller forts. This was where he located his capital. Sultan bin Saif set up a strong and stable administration, with governors and judges who applied the laws justly. According to George Percy Badger, in his 1871 A History of the Imaums and Sayyids of Oman, Sultan bin Saif died in 1679 and was succeeded by his son, Bil'arab bin Sultan.
