Lee Hsien Loong
Singapore Prime Minister Lee Hsien Loong speaks at the International Conference on The Future of Asia in Tokyo, Japan, Sept. 29, 2016. Reuters

A feud has erupted in one of Singapore's most famous political family where Prime Minister Lee Hsien Loong's younger brother and sister said Wednesday that they are disturbed by the character, conduct, motives and leadership of the nation's leader. This is the second time the family's dispute has been made public, the siblings had earlier accused Loong of abusing his power in 2016, in the run-up to the first death anniversary of their father, Lee Kuan Yew, who was the country's founding prime minister.

The siblings — Lee Wei Ling and Lee Hsien Yang — released a statement Wednesday that blamed Loong, who took the reins of power over a decade after their father retired, of misusing his position and influencing the government to fulfil his personal agenda.

Loong posted a statement on his Facebook account saying that he was disappointed that his siblings have chosen to issue a statement publicizing private family matters. "While siblings may have differences, I believe that any such differences should stay in the family. Since my father’s passing in March 2015, as the eldest son I have tried my best to resolve the issues among us within the family, out of respect for our parents. My siblings’ statement has hurt our father’s legacy."

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Yang and his wife Suet Fern, would be leaving Singapore saying that they had no desire to live in the city and Loong was the only reason for their departure.

Feuds in political family is not unheard of. From differences between former President Ronald Reagan's children, to North Korea's leader Kim Jong Un's rivalry with his half-brother; there are several instances from the world political history that made news.

Reagan's children are known to have contrasting views on politics, religion and their father's legacy. Ron Reagan and Patti Davis, children from his second marriage to Nancy Reagan, are progressive liberals who publicly supported Barack Obama in 2008, while Michael, who was adopted during Ronald's first marriage to actress Jane Wyman, is a conservative, ABC News reported.

The rivalry between Michael and Ron became prominent during 2011 when both were on tour promoting their respective books. When asked by Christiane Amanpour in a 2011 interview on ABC News' "This Week" that how Ronald would have fit in today's Republican party, Ron replied that he didn't see his father as a perfect fit. Ron started by saying: "Somewhat uneasily...After all, he did raise taxes…When he was governor of California, he signed into law one of the most liberal abortion policies in the country and also an amnesty program for illegal immigrants. So I'm not sure that today's Republican Party or Tea Party would be all that thrilled with him."

However, Michael disagreed with his younger brother and said: "He would have endorsed the Tea Party, what they're doing, and the fact is Ronald Reagan was the original Tea Party...He understood that the electorate lived in the grass roots of this country. … It was grassroots America that supported Ronald Reagan back in 1980. That's why he became the President of the United States of America."

Another famous rivalry in a political family is between the Nixon sisters. Former president Richard Nixon's daughters, Tricia and Julie, grew up together, became maids of honor at each other's weddings but seemed to become rivals in 1997 — three years after their father's death — when the sisters had to make a decision of managing their father's library.

After Richard was buried at his presidential library in Yorba Linda, Edward Cox, Tricia's New York attorney husband, made a plan to ensure the Nixon library would be within the family's control rather than any outsider. This gave way to arch rivalry between the sisters who struggled to figure out how much of their father's legacy belonged to history and how much belonged to them, the Los Angeles Times reported.

"It is not a clash between the two daughters," Dimitri Simes, president of the Nixon Center, a Washington, D.C., foreign policy think-tank funded by the foundation, told USA Today in 2002. "It is a clash between the two philosophies: a professional foundation or a family-controlled foundation."

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Another well-known rivalry is between North Korea's leader Kim Jong Un's family. Kim Jong Nam is the son of deceased North Korea leader Kim Jong Il and North Korean actress Song Hye Rim. As Kim Jong Il's illegitimate son, Jong Nam spent his childhood in secret with his mother's relatives in Pyongyang before leaving North Korea to study in Moscow and Geneva, according to reports. Kim Jong Un was the youngest son of Kim Jong Il.

When Kim Jong Nam left North Korea in 1979, Kim Jong Il had started a relationship with another woman with whom he fathered three children, the second one being Kim Jong Un. She reportedly wanted her son to rule the country, which eventually happened, resulting in rivalry between the two half-brothers.