Question: Who was the father of the emporer who established the Meissen Cathedral?
Context: Otto I (23 November 912 – 7 May 973), traditionally known as Otto the Great (German: "Otto der Große" ), was German king from 936 and emperor of the Holy Roman Empire from 962 until his death in 973.  He was the oldest son of Henry I the Fowler and Matilda. The Albrechtsburg is a Late Gothic castle that dominates the town centre of Meissen in the German state of Saxony.  It stands on a hill above the river Elbe, adjacent to the Meissen Cathedral. Catherine of Henneberg (German: "Katharina von Henneberg" ; c. 1334, Schleusingen – 15 July 1397, Meissen) was a Countess of Henneberg by birth and from 1347 by marriage Margravine of Meissen, Landgravine of Thuringia, etc.  She was the wife of Margrave Frederick the Severe of Meissen.  Via her, the House of Wettin inherited her father's Franconian possessions. Meissen (in German orthography: "Meißen", ] ) is a town of approximately 30,000 about 25 km northwest of Dresden on both banks of the Elbe river in the Free State of Saxony, in eastern Germany.  Meissen is the home of Meissen porcelain, the Albrechtsburg castle, the Gothic Meissen Cathedral and the Meissen Frauenkirche.  The "Große Kreisstadt" is the capital of the Meissen district. The Evangelical-Lutheran Church of Saxony ("Evangelisch-Lutherische Landeskirche Sachsens") is one of 22 member Churches of the Evangelical Church in Germany (EKD), covering most of the state of Saxony.  Its headquarters are in Dresden, and its bishop (styled Bishop of Saxony) has his seat at Meissen Cathedral. Albert Leopold "Friedrich Christian" Sylvester Anno Macarius, Prince of Saxony, Duke of Saxony, Margrave of Meissen (31 December 1893 – 9 August 1968) was the second son of King Frederick Augustus III of Saxony, who was the last King of Saxony, before the monarchy was abolished in 1918.  When his father died in 1932, he became the head of the Royal House of Saxony.  He was Captain à la suite in the Royal Bulgarian Infantry, and Grand Master of the Order of the Rue Crown, and also a Knight in the Order of the Black Eagle and Knight Grand Cross in the Sovereign Military Order of Malta.  As head of the House of Wettin after 1932, he styled himself as "Friedrich Christian, Margrave of Meissen". The Bishopric of Merseburg was an episcopal see on the eastern border of the medieval Duchy of Saxony with its centre in Merseburg, where Merseburg Cathedral was constructed.  The see was founded in 967 by Emperor Otto I at the same time in the same manner as those of Meissen and Zeitz (from 1029: Naumburg), all suffragan dioceses of the Archbishopric of Magdeburg as part of a plan to bind the adjacent Slavic ("Wendish") lands in the Saxon Eastern March beyond the Saale River more closely to the Holy Roman Empire. Otto I was the Margrave of Meissen from 1062 until his death in 1067, and the second Margrave of the family of the counts of Weimar and Orlamünde.  He was a younger son of William III of Weimar and Oda, daughter of Thietmar, Margrave of the Saxon Ostmark.  He inherited Orlamünde from his father in 1039 and Weimar from his brother William in 1062.  He was appointed by the Emperor Henry IV to succeed William in Meissen as well.  He became Advocate of the Cathedral of Merseburg in 1066. The Meissen Cathedral or Church of St John and St Donatus (German: "Meißner Dom" ) is a Gothic church in Meissen in Saxony.  It is situated on the castle hill of Meissen, adjacent to the Albrechtsburg castle.  It was the episcopal see of the Bishopric of Meissen established by Emperor Otto I in 968.  It replaced an older Romanesque church.  The present-day hall church was built between 1260 and 1410, the interior features Gothic sculptures of founder Emperor Otto and his wife Adelaide of Italy as well as paintings from the studio of Lucas Cranach the Elder.  The first Saxon elector from the House of Wettin, Margrave Frederick I, had the Prince's Chapel erected in 1425 as the burial place of his dynasty.  The twin steeples were not attached until 1909. Kraft of Meissen, also noted as Krafto, Craft, Crafto, Crato or Christ (died 1066) was a provost of Goslar Cathedral appointed and consecrated as Bishop of Meissen in 1066 in succession to Reiner of Meissen.  He died however in the same year before he could enter upon his office.
Answer: Henry I the Fowler