Question: Who is the Mother of Tshekedi Khama II?

Context paragraphs:
Rhoemetalces II: Rhoemetalces II was a Client Ruler in association with his mother Antonia Tryphaena of the Odrysian kingdom of Thrace under the Romans from 18 to 38.  On coinage his royal title is in Greek:ΒΑΣΙΛΕΥΣ ΡΟΙΜΗΤΑΛΚΑΣ or of King Rhoemetalces.  Rhoemetalces II and Tryphaena succeeded his paternal great-uncle Rhescuporis II, who had usurped the throne from Rhoemetalces II's father Cotys VIII.  The Roman Emperor Tiberius deposed Rhescuporis II and installed Rhoemetalces II and Tryphaena on the throne in his place.  They served as loyal client rulers, even in 26 putting down Thracian malcontents for Tiberius.  Rhoemetalces II never married and had no children.  After his death in 38, his cousin Rhoemetalces III, the son of Rhescuporis II, was appointed king, while his mother retired to live as a private citizen in Cyzicus.

Ruth Williams Khama: Ruth Williams Khama, Lady Khama (9 December 1923 – 22 May 2002) was the wife of Botswana's first president Sir Seretse Khama, the Paramount Chief of its Bamangwato tribe.  She served as the inaugural First Lady of Botswana from 1966 to 1980.

Ndlovukati: Ndlovukati (literally, "She-Elephant", pl.  "tiNdlovukati") is the Swazi title for the female head of state of Swaziland and is roughly equivalent to a Queen Mother or Senior Queen in other countries.  The title is given preferentially to the mother of the reigning King (styled the "Ngwenyama", "Lion of Swaziland"), or to another female royal of high status if the King's mother has died.  Indlovukati rules alongside the Ngwenyama, and when there is no King, she rules as a Queen Regent.  The current Ndlovukati is Queen Ntombi Tfwala, the mother of Ngwenyama Mswati III and wife of Sobhuza II.  She has also been Queen Regent from 1983 until 1986 when Mswati became King.  The most notable Queen Regent was Ndlovukati Labotsibeni Mdluli who ruled Swaziland from 1899 until 1921 when she abdicated for Sobhuza II.

Tshekedi Khama: Tshekedi Khama (17 September 1905, Serowe - 10 June 1959, London) was the regent of the Bamangwato tribe in 1926 after the death of Sekgoma II.

John Nswazwi: John Madawo Nswazwi is a former chief of the BaKalanga Baka-Nswazwi.  He was born in Nswazwi in then Bechuanaland in 1875.  He ruled from 1910 to 1960 having succeeded his father, Kuswani Nswazwi (Nswazwi VII).  He was exiled to Mafikeng in 1947 by the colonial government as a result of a conflict with the Bangwato regent Tshekedi Khama.  After he was released In 1948, Chief Nswazwi went on exile to Rhodesia .  He died on May 14, 1960.  He was buried in Jetjeni and his remains were later transferred to Nswazwi village in 2002.

Nur Felek Kadinefendi: Nur Felek Kadinefendi was the first consort of Isma'il Pasha of Egypt.  She was born in Greece in 1837.  Her maiden name was Tatiana.  At a young age, she was captured during one the raids and sold into slavery.  She was delivered as a concubine to the harem of Sa'id,the Wāli of Egypt in 1852.  However, Isma'il Pasha, then not yet the Khedive of Egypt, took Tatiana as a concubine for him.  She gave birth to Prince Hussein Kamel Pasha in 1853.  She later converted to Islam and her name was changed to Nur Felek.  When Isma'il Pasha ascended the throne in 1863, she was elevated to the rank of first Kadinefendi, literally meaning first consort, or wife.  Nur Felek had a high status in the imperial palace, since she was the mother of Isma'il's second eldest son.  Isma'il's eldest son was Tewfik Pasha, son of the Turkish concubine Shafaq Nur Hanimefendi.  After the removal of Abbas II, her son Hussein Kamel became Sultan of Egypt and she became the mother Sultana, a title equivalent to Queen mother and Valide Sultan, a rank higher than the Walida Pasha, the title held by mothers of reigning Khedives like Hoshiar Kadinefendi, mother of Isma'il Pasha and Emina Ilhamy, mother of Abbas II.

Pilikwe: Pilikwe is a rural village in Central District in Botswana.  It was founded by Kgosi Tshekedi Khama of Bangwato.  The current chief of the village is Kgosi Gasebalwe Seretse.  The village is also known by the native name 'Rametsana'.

Mma-Besi: Mma-Besi or Mabisa (1846-1889) was the mohumagadi (queen or queen mother) of the BaNgwato of the Bechuanaland Protectorate, now Botswana, and the first wife of king Khama III.  She was baptized Elizabeta in 1862, taking the name in honor of Elizabeth Moffat, daughter of Robert Moffat.  She was married that same year in what was the first Christian marriage held in Shoshong.  Her first child, a daughter, was called Besi, and so she became Mma-Besi due to a tradition of taking the name "mother of" one's firstborn.  Her one son who lived, Sekgoma, became king when Khama III died in 1923 but died himself soon after.  She herself died at age 44, likely of malaria due to Khama III moving the capital to the Tswapong Hills, an unhealthy place.

Semane Setlhoko Khama: Semane Setlhoko Khama (1881-1937) was the mohumagadi (queen or queen mother) of the BaNgwato of the Bechuanaland Protectorate, now Botswana, and the fourth and final wife of king Khama III.  She married him in 1900.  She had five children, three of whom died young, and one of whom, Tshekedi, was regent of the BaNgwato from 1925 to 1950.  She was a Christian and a member of the Woman's Christian Temperance Union, to which in 1933 she brought in the highest number of recruits.  She also created a branch of the WCTU called the Women's Regiment of Beer.  She preached to women and men in the central village meeting place, which until then had been a male political place.  She increased women's activism and membership in the church, and conducted church-related classes and taught women how to conduct their own classes.  She also promoted modern medicine and midwifery.

Tshekedi Khama II: Tshekedi Stanford Khama (born 9 June 1958) is a Botswana Member of Parliament from Serowe North-West.  He is a member of the Botswana Democratic Party (BDP).  He is also the brother of the current President of Botswana, Ian Khama, and one of the three sons of the first President of Botswana, Seretse Khama and Ruth Williams Khama.

Supporting paragraphs: Tshekedi Khama II Ruth Williams Khama
Answer: Ruth Williams Khama