Question: Information:  - Henry I of Brabant ( French : Henri I de Brabant , Dutch : Hendrik I van Brabant ; 1165 -- 5 September 1235 ) , named `` The Courageous '' , was a member of the House of Reginar and first Duke of Brabant from 1183/84 until his death .  - Landgrave (  ', ', ', ', ') was a noble title used in the Holy Roman Empire, and later on in its former territories. The German titles of ', ' ("margrave"), and ' ("count palatine") are in the same class of ranks as ' ("duke") and above the rank of a ' ("count").  - Lotharingia from Latin "Lotharii regnum" was a medieval successor kingdom of the Carolingian Empire, comprising the present-day Netherlands, Belgium, Luxembourg, North Rhine-Westphalia (Germany), Rhineland-Palatinate (Germany), Saarland (Germany), and Lorraine (France). It was named after King Lothair II who received this territory after the kingdom of Middle Francia of his father Lothair I was divided among his sons in 855.  - The House of Valois-Burgundy, or the Younger House of Burgundy, was a noble French family deriving from the royal House of Valois. It is distinct from the Capetian House of Burgundy, descendants of King Robert II of France, though both houses stem from the Capetian dynasty. They ruled the Duchy of Burgundy from 1363 to 1482 and later came to rule vast lands including Artois, Flanders, Luxembourg, Hainault, the county palatine of Burgundy (Franche-Comté), and other lands through marriage.  - The Duke of Brabant was formally the ruler of the Duchy of Brabant since 1183/1184. The title was created by the German Emperor Frederick Barbarossa in favor of Henry I of the House of Reginar, son of Godfrey III of Leuven (who was Duke of Lower Lotharingia at that time). The Duchy of Brabant was a feudal elevation of the since 1085/1086 existing title of Landgrave of Brabant. This was an Imperial fief which was assigned to Count Henry III of Leuven shortly after the death of the preceding Count of Brabant, Count Palatine Herman II of Lotharingia (born 20 September 1085). Although the corresponding county was quite small (limited to the territory between the rivers Senne and Dender) its name was applied to the entire country under control of the Dukes from the 13th century on. In 1190, after the death of Godfrey III, Henry I also became Duke of Lotharingia. Formerly Lower Lotharingia, this title was now practically without territorial authority, but was borne by the later Dukes of Brabant as an honorific title.  - The House of Luxembourg was a late medieval European royal family, whose members between 1308 and 1437 ruled as King of the Romans and Holy Roman Emperors as well as Kings of Bohemia ("eští králové, König von Böhmen") and Hungary. Their rule over the Holy Roman Empire was twice interrupted by the rival House of Wittelsbach.  - The House of Hesse is a European dynasty, directly descended from the House of Brabant, which ruled the region of Hesse, with one branch as prince electors until 1866, and another branch as grand dukes until 1918.  - The House of Reginar (later known as the House of Brabant) was a kin-group in Lotharingia during the Carolingian and Ottonian centuries. They were the first dynasty of the County of Hainault and they supplied two Dukes of Lorraine and the Landgraves and later Dukes of Brabant, Dukes of Lothier and Dukes of Limburg. The main branch extinguished in 1355, leaving its duchies to the House of Luxembourg which in turn left them to the House of Valois-Burgundy in 1383. A side branch is the House of Hesse which ruled Hesse from 1264 until 1918 and is still existing today.    What is the relationship between 'henry i' and 'duke of lower lotharingia'?
Answer:
noble title