The outspoken royal appears to want to make an impact in his role. He told the Singapore Straits Times last month that he is determined not to waste five years on the throne as a “puppet king”.

And he is already raising eyebrows. A Bloomberg profile of him describes the king as a “motorcycle-riding, Ferrari-driving, Instagram-savvy royal”.

Sultan Ibrahim – the 65-year-old head of the Johor royal family – will use the title His Majesty Yang di-Pertuan Agong, the equivalent of king in Malaysia.

His election to the national throne was widely expected because Malaysia operates the world’s only rotating system of monarchy. Under the system, Malaysia’s nine hereditary rulers, known as “sultans”, rotate the role of head of state between them every five years, Reuters reported.

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But the new monarch was considered one of the country’s most powerful and wealthiest people long before taking the new title.

According to Bloomberg, the Johor family is worth an estimated US$5.7 billion. The publication cited the family’s investments in private land, property and public and private companies.

The Johor family is the only royal family in Malaysia to have a private army, a condition which was granted for Johor to join modern-day Malaysia after it gained independence from Britain in 1967, ABC News said.

According to Bloomberg, the king has a collection of private jets and more than 300 luxury vintage cars, including one that belonged to Hitler. In a resurfaced 2013 interview posted to YouTube in 2017, Sultan Ibrahim said Hitler was a friend of his great-grandfather. He added that Hitler’s car was sent to England and then Malaysia before being given to his great-grandfather.

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Sultan Ibrahim is also a motorbike enthusiast and is known to take trips in his Harley-Davidson around Johor, where he has previously handed out “charity to the poor”, according to The Guardian.

Though the king’s role is largely ceremonial, he has certain parliamentary responsibilities, including the ability to appoint a prime minister. He is also able to pardon those who have been convicted of crimes, Reuters reported.

It is illegal for members of the public to openly criticise the king due to the 1948 Sedition Act. This rule was particularly significant in the late 1980s and 1990s, when Sultan Ibrahim’s father, the late Sultan of Johor, was accused of murder.

The sultan was accused of manslaughter in 1971 after shooting someone who allegedly broke into his home, The Sydney Morning Herald reported after his death in 2010. He was publicly pardoned by his father, the 23rd Sultan of Johor, the publication added.

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In 1987, he was also accused of killing a golf caddie who laughed when he missed a putt. Because he was king at the time, he couldn’t be prosecuted, according to The Sydney Morning Herald.

The Malaysian government did not immediately respond to a request for comment on the matter. Representatives for the king could not be reached.

Despite the law forbidding them to do so, some politicians have openly spoken out against the sultans over the years.

For example, former Prime Minister Mahathir Mohamad criticised the Johor family’s business dealings, according to Bloomberg, which reported that the king’s various investments go directly against the country’s constitutional rule that a king “shall not actively engage in any commercial enterprise”.

“Actually, they should not be involved in business,” Mohamad said in a recent interview, according to Bloomberg.

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“Unfortunately, the Malays cannot say no to their rulers. Their culture is such that, if the rulers want to do something, whatever the constitution or the law may say, they cannot say no,” he added. “The civil servants cannot say no. Even the politicians cannot say no.”

Sultan Ibrahim’s wife, Raja Zarith Sofiah, is from another royal family, an Oxford graduate, and a children’s books author, according to the Associated Press. They have six children together.