Henry m. Old High German heim, Old Frankish *haim 'home' + Old High German rih 'ruler'.
The name of a 10th C king of Germany, an 11th C king of the Franks, an 11th C Holy Roman emperor and saint, two other 11th C Holy Roman emperors, two 12th C Holy Roman emperors, two 12th C kings of England, a 13th C emperor of Constantinople, a 12th C king of the Slavs, a 13th C high duke of Poland, a 13th C king of Navarre, a 13th C king of Castile, a 13th C king of England, a 14th C king of Castile, a 14th C king of Germany and Holy Roman emperor, a 15th C king of Castile, three 15th C kings of England, a 15th-16th C king of England, a 16th C king of Portugal, a 16th C king of Navarre, two 16th C kings of France, a 16th C king of France and Navarre, a 16th C king of England, as well as numerous saints.