Speyer Cathedral the dwarf gallery and the blind arcades were composed into "one of the most memorable pieces of Romanesque design". The dwarf gallery encircles the top of the apse, underlining its rounded form, and runs all around the structure below the roofline. This feature soon became a fundamental element in Romanesque churches; it was adopted at Worms Cathedral and Mainz Cathedral, and on the façades of many churches in Italy (see detail in gallery below). "The cathedral re-emerged in a more sculptural style typical of the prime of the Romanesque period." "The transept, the square of the choir, the apse, the central tower and the flanking towers were combined in a manner and size surpassing anything done before. All surfaces and edges rise without stages. The major elements within the combination remain independent.... Speyer became a model for many other church buildings but was unsurpassed in its magnificence." The expanded cathedral, Speyer II, was completed in 1106, the year of Henry's IV death. With a length of 444 Roman feet (134 metres) and a width of 111 Roman feet (43 metres) it was one of the largest buildings of its time. The building became a political issue: the enlargement of the cathedral in the small village of Speyer with only around 500 inhabitants was a blunt provocation for the papacy. The emperor not only laid claim to secular but also to ecclesiastical power, and with the magnificence and splendour of this cathedral he underlined this bold demand. The purpose of the building, already a strong motive for Conrad, was the emperor's "claim to a representative imperial Roman architecture" in light of the continuing struggle with Pope Gregory VII. Thus, Speyer Cathedral is also seen as a symbol of the Investiture Controversy. It was only five years after his death that Henry IV's excommunication was revoked and his body was put to rest in his cathedral in 1111. In the following centuries the cathedral remained relatively unchanged. In a drawing of 1610 a Gothic chapel has been added to the northern aisle, and in a drawing of around 1650 there is another Gothic window in the northern side of the Westwerk. In a drawing of 1750 depicting the cathedral with the destroyed middle section the latter window is absent. File: The last ruler was put to rest in the cathedral in 1308, completing a list of eight emperors and kings