Question: Thomas Lutz was born in a city in the state of Hesse in Germany, that as of 2013 had a population of around what?

<P0-S0> Frankfurt, officially Frankfurt am Main (Literally "Frankfurt on the Main", ] ), is a metropolis and the largest city in the German state of Hesse and the fifth-largest city in Germany, with a 2015 population of 732,688 within its administrative boundaries, and 2.3 million in its urban area. <P0-S1>  The city is at the centre of the larger Frankfurt Rhine-Main Metropolitan Region, which has a population of 5.5 million and is Germany's second-largest metropolitan region after Rhine-Ruhr. <P0-S2>  Since the enlargement of the European Union in 2013, the geographic centre of the EU is about 40 km to the east of Frankfurt's CBD, the Bankenviertel. <P0-S3>  Frankfurt is culturally and ethnically diverse, with around half of the population, and a majority of young people, having a migration background. <P0-S4>  A quarter of the population are foreign nationals, including many expatriates. <SEP> <P1-S0>  Darmstadt has a population around 150,000 (2013). <P1-S1> Darmstadt (] ) is a city in the state of Hesse in Germany, located in the southern part of the Rhine-Main-Area (Frankfurt Metropolitan Region). <P1-S2>  The Darmstadt Larger Urban Zone has 430,993 inhabitants. <SEP> <P2-S0> The Elector of Mainz was one of the seven  Prince-electors of the Holy Roman Empire. <P2-S1>  Both a ruling prince and an archbishop, the Elector of Mainz held a powerful position during the Middle Ages and retained some importance until the dissolution of the empire in 1806. <P2-S2>  The Elector of Mainz was president of the electoral college, arch-chancellor of the empire and primate of Germany. <P2-S3>  The origin of the title dates back to 747, when the city of Mainz was made the seat of an archbishop, and a succession of able and ambitious prelates, obtaining lands and privileges from emperors and others, made the district under their rule a strong and vigorous state. <P2-S4>  Among these men were important figures in the history of Germany such as Hatto I, Siegfried III, Peter of Aspelt, and Albert of Mainz There were several violent contests between rivals anxious to secure so splendid a position as the elector, and the power struggles of the archbishops occasionally moved the citizens of Mainz to revolt. <P2-S5>  The lands of the elector lay around Mainz, and were on both banks of the Rhine; their area at the time of the French Revolution was about 3200 sq. m. <P2-S6>  The last elector was Karl Theodor von Dalberg. <P2-S7>  The archbishopric was secularized in 1803, two years after the lands on the left bank of the Rhine had been seized by France. <P2-S8>  Some of those on the right bank of the river were given to Kingdom of Prussia and to the Grand Duchy of Hesse; others were formed into a grand duchy for the then Archbishop-Elector Dalberg. <P2-S9>  The archbishopric itself was transferred to the Principality of Regensburg. <SEP> <P3-S0> Thomas Lutz (    1957 in Darmstadt) is the head of the Memorial Museums Department of the Topography of Terror Foundation in Berlin, and active in Holocaust education and research at the national (German) and international level.