Title: Princess Senate Seeiso
Content:  Princess Senate Mohato Seeiso (born 7 October 2001) is a princess of Lesotho, the eldest child of King Letsie III of Lesotho and his wife Queen 'Masenate Mohato Seeiso. Princess Senate was born at Maseru Private Hospital in Maseru, the capital of Lesotho. The current laws governing the Line of succession to the Lesothan throne bar women from succeeding to the throne although there has been support within Lesotho for a change in the rules. No changes have taken place yet and the birth of a brother Prince Lerotholi Seeiso in 2007 means that he becomes the new heir to the throne. She was baptised into the Catholic Church with the name of "Mary" on November 10, 2001. Princess Senate is the patron of the non-governmental organization Coalition on the Rights of the Child, which works to monitor and implement the Convention on the Rights of the Child in Lesotho.
Title: Seeiso of Basutoland
Content:  Seeiso, full name Simon Seeiso Griffith (1905 &ndash; 26 December 1940) was the paramount chief of Basutoland from 23 June 1939 until his death. He is the father of former king Moshoeshoe II of Lesotho and the paternal grandfather of the current king, Letsie III of Lesotho.
Title: Prince Seeiso of Lesotho
Content: Prince Bereng Constantine Seeiso. ; Princess 'Masentle Tabitha Seeiso. ; Prince Masupha David Seeiso. Prince Seeiso married to Princess Mabereng Seeiso of Lesotho (born 'Machaka Makara) on 15 December 2003. They have three children, two sons and one daughter: 
Title: Prince Seeiso of Lesotho
Content: Sentebale. 
Title: Prince Seeiso of Lesotho
Content:  Prince Seeiso Bereng Seeiso of Lesotho, Principal Chief of Matsieng (born April 16, 1966) is the younger brother of Lesotho's King Letsie III, and son of the Southern African country's late King Moshoeshoe II (1938–1996) and the late Queen 'Mamohato Bereng Seeiso (1941–2003).
Title: Prince Seeiso of Lesotho
Content:  He served as the President of the Senate of Lesotho from 2015 to 2017 and as the Lesotho High Commissioner to the United Kingdom. Prince Seeiso received Diplomat of the Year from Africa Award from the Diplomat Magazine. He is also a Chevening Scholar, and obtained a master's degree in International Studies from the University of Birmingham in 1996. In April 2006, he and Prince Harry formed a charity called Sentebale which means "forget-me-not" to support organizations working with Lesotho's disadvantaged young people and children, particularly those orphaned as a result of HIV and AIDS. He was awarded an honorary degree by University of Birmingham in 2007. He is the Principal Chief of Matsieng. He and his wife attended the wedding of Prince Harry and Meghan Markle, the only foreign royals to do so.
Title: Princess Mabereng Seeiso of Lesotho
Content:  Princess Mabereng Seeiso of Lesotho (born Machaka Makara) is a member of the Royal Family of Lesotho. Princess Seeiso is the wife of Prince Seeiso of Lesotho and the sister-in-law of King Letsie III of Lesotho.
Title: 'Masenate Mohato Seeiso
Content:  Queen 'Masenate and King Letsie have three children; Princess Senate (b. 7 October 2001), Princess 'Maseeiso (b. 20 November 2004), and Prince Lerotholi (b. 18 April 2007). She later explained that she wished she had more children, saying "Maybe I should have had one early after Prince Lerotholi but now my biological clock is telling me the time is up. I have read a lot about reproductive health-related risks and some medical researchers, in their studies, don't recommend women to consider falling pregnant at my age. When your eggs are no longer that fresh to make a healthy baby, then it's better to be on the safe side."
Title: Princess Mabereng Seeiso of Lesotho
Content: Cape Peninsula University of Technology. Biomedical Technology Degree (1997–2000). ; University of Stellenbosch. Medical Microbiology (2001–2002). ; University of Westminster. MA Management Studies (2008–2010). Prince Bereng Constantine Seeiso. ; Princess 'Masentle Tabitha Seeiso. ; Prince Masupha David Seeiso. She attended:  Princess Mabereng Seeiso and her husband, Prince Seeiso married on 15 December 2003, and they have three children:  Since July 2012 is the owner and Managing Director of Mabeoana Crafts PTY LTD (Manufacturing.CMT - Textile industry. Import and export supply chain management). She and her husband attended the Wedding of Prince Harry and Meghan Markle, the only foreign royals to do so.
Title: Princess 'Maseeiso Seeiso
Content:  Princess 'Maseeiso Mohato Seeiso (born 20 November 2004) is a princess of Lesotho, the second child of King Letsie III of Lesotho and his wife Queen 'Masenate Mohato Seeiso. She was born at Maseru Private Hospital in Maseru, the capital of Lesotho. Women are prohibited under law from ruling in Lesotho, so neither 'Maseeiso nor her older sister Senate are eligible; their younger brother Lerotholi is the heir apparent. There has been some support recently for this law to change, however.

Question: Who is the father of Princess Senate Seeiso?
Answer: Letsie III of Lesotho.
Letsie III.