Title: Pope John VII
Content:  John was an ethnic Greek, a native of Rossano in Calabria. His father, Plato (c. 620 – 686), was the curator of the Palatine Hill for the Byzantine emperor. This makes John the first pope to be the son of a Byzantine official. His mother was called Blatta (c. 627 – 687).
Title: John Chrysostom
Content:  John was born in Antioch in 347 (. Different scholars describe his mother Anthusa as a pagan or as a Christian, and his father was a high-ranking military officer. John's father died soon after his birth and he was raised by his mother. He was baptised in 368 or 373 and tonsured as a reader (one of the minor orders of the Church). It is sometimes said that he was bitten by a snake when he was ten years old, leading to him getting an infection from the bite. As a result of his mother's influential connections in the city, John began his education under the pagan teacher Libanius. From Libanius, John acquired the skills for a career in rhetoric, as well as 
Title: John Joseph of Austria
Content:  His mother was María Calderón (La Calderona), a popular actress, who was forced into a convent shortly after his birth. He was raised in León by a woman of modest circumstances who likely did not know his parentage, though he received "a careful education" at Ocaña (Toledo). In 1642, the King recognized him officially as his son, and John began his life's career as a military representative of his father's interests.
Title: Pope John XVIII
Content:  John was born to the Fasano family in Rome. His father was a priest, either named Leo according to Johann Peter Kirsch, or Ursus according to Horace K Mann.
Title: J.John
Content:  J.John was born on 2 June 1958 in London, England to his parents, George and Helen Ioannou. J.John's Greek name is Iouannes Iouannon; which translates as John John. His parents were owners and managers of a local restaurant in London. He studied psychology at Hendon College London from 1974 – 1976, where in 1975 he was introduced to Christianity by a friend, the Reverend Andy Economides.
Title: Zakariya
Content: Zakariya, the father of John the Baptist (Yahya) 
Title: John DeFrancesco
Content:  "Papa" John DeFrancesco (born September 12, 1940) is an American jazz organist and vocalist, and father of Joey DeFrancesco and Johnny DeFrancesco.
Title: Gottfried John
Content:  John was born in Berlin, Germany on 29 August 1942. In World War II he and his mother were evacuated to East Prussia; his father, whom he never met, was married to another woman. He grew up with his single parent mother and in several protectories; John fled from such a protectory when he was 15 years old and returned to his mother, who was living in Paris. In Paris he earned a living as a pavement artist and construction worker, and returned to Berlin in 1960.
Title: John Komnenos (son of Andronikos I)
Content:  John was born to the future Andronikos I Komnenos and his first wife, whose name is unknown, in August or September 1159. He was conceived in early 1159, when his mother was in prison, and Andronikos visited her secretly one night. The young John probably accompanied his father when the latter was named military governor (doux) of Cilicia in 1166, as he definitely was with his father during his subsequent exile and long wanderings across the principalities of the Near East, while his older brother Manuel and his sister Maria remained in Constantinople. It was not until late 1178 or early 1179 that Andronikos was allowed back to 
Title: John Howard (prison reformer)
Content:   Howard was born in North London, either in Hackney or Enfield. His father, also John, was a wealthy upholsterer at Smithfield Market in the city. His mother Ann Pettitt died when he was five years old, and, described as a "sickly child", he was sent to live at Cardington, Bedfordshire, some fifty miles from London, where his father owned property. His father, a strict disciplinarian with strong religious beliefs, sent the young John to a school in Hertford and then to John Eames's dissenting academy in London. After school, John was apprenticed to a wholesale grocer to learn business methods, but he was unhappy. When his father died in 1742, he was left with a sizeable inheritance but no true vocation. 

Question: Who is the father of John?
Answer: Rupert.
Ruprecht.