country_of_citizenship josef ludwig holub
The Professor Josef Ludwig Holub ( 5 February 1930 in Mladá Boleslav , ( now ___MASK55___ ) -- 23 July 1999 ) was a Czech botanist who described a number of new species , worked on systematic reorganization of botanical groups , and contributed greatly to the study of European flora . Central ___MASK86___ is an administrative unit of the ___MASK55___ , located in the central part of its historical region of ___MASK86___ . Its administrative center is placed in the Czech capital Prague , which lies in the center of the region . The city is not , however , a part of it and creates a region of its own . ___MASK32___ , officially the Republic of ___MASK32___ , is a country in Central Europe , situated between the Baltic Sea in the north and two mountain ranges ( the Sudetes and Carpathian Mountains ) in the south . Bordered by Germany to the west ; the ___MASK55___ and ___MASK58___ to the south ; Ukraine and Belarus to the east ; and the Baltic Sea , Kaliningrad Oblast ( a Russian exclave ) and Lithuania to the north . The total area of ___MASK32___ is , making it the 69th largest country in the world and the 9th largest in Europe . With a population of over 38 . 5 million people , ___MASK32___ is the 34th most populous country in the world , the 8th most populous country in Europe and the sixth most populous member of the European Union . ___MASK32___ is a unitary state divided into 16 administrative subdivisions , and its capital and largest city is Warsaw . Other metropolises include Kraków , Wrocaw , Pozna , Gdask and Szczecin . Czech Silesia is the name given to the part of the historical region of Silesia presently located in the ___MASK55___ . While not today an administrative entity in itself , Czech Silesia is , together with Bohemia and Moravia , one of the three historical Czech lands . In this context , it is often mentioned as " Silesia " even though it is only around one tenth of the area of the historic land of Silesia . ___MASK86___ is the westernmost and largest historical region of the Czech lands in the present - day ___MASK55___ . In a broader meaning , ___MASK86___ sometimes refers to the entire Czech territory , including Moravia and Czech Silesia , especially in a historical context , such as the Lands of the Bohemian Crown ruled by Bohemian kings . The Renaissance was a period in European history , from the 14th to the 17th century , regarded as the cultural bridge between the Middle Ages and modern history . It started as a cultural movement in ___MASK34___ in the Late Medieval period and later spread to the rest of Europe , marking the beginning of the Early Modern Age . Silesia ( or ; Silesian German : " Schläsing " Silesian : " lnsk " ) is a region of Central Europe located mostly in ___MASK32___ , with small parts in the ___MASK55___ and Germany . Its area is about , and its population about 8 , 000 , 000 . Silesia is located along the Oder river . It consists of Lower Silesia and Upper Silesia . The ___MASK55___ , also known by the short name Czechia , is a nation state in Central Europe bordered by Germany to the west , Austria to the south , ___MASK58___ to the east and Poland to the northeast . The ___MASK55___ covers an area of with mostly temperate continental climate and oceanic climate . It is a unitary parliamentary republic , has 10 . 5 million inhabitants and the capital and largest city is Prague , with over 1 . 2 million residents . The ___MASK55___ includes the historical territories of Bohemia , Moravia , and Czech Silesia . ___MASK61___ , officially the Federal Republic of ___MASK61___ , is a federal parliamentary republic in central - western Europe . It includes 16 constituent states , covers an area of , and has a largely temperate seasonal climate . With about 82 million inhabitants , ___MASK61___ is the most populous member state of the European Union . After the United States , it is the second most popular immigration destination in the world . ___MASK61___ ' s capital and largest metropolis is Berlin . Other major cities include ___MASK35___ , Munich , Cologne , Frankfurt , Stuttgart and Düsseldorf . Prague is the capital and largest city of the ___MASK55___ . It is the 14th largest city in the European Union . It is also the historical capital of Bohemia . Situated in the north - west of the country on the Vltava river , the city is home to about 1 . 26 million people , while its larger urban zone is estimated to have a population of nearly 2 million . The city has a temperate climate , with warm summers and chilly winters . Moravia is a historical country in the ___MASK55___ ( forming its eastern part ) and one of the historical Czech lands , together with Bohemia and Czech Silesia . The medieval and early modern Margraviate of Moravia was a crown land of the Lands of the Bohemian Crown ( from 1348 to 1918 ), an imperial state of the Holy Roman Empire ( 1004 to 1806 ), later a crown land of the Austrian Empire ( 1804 to 1867 ) and briefly also one of 17 former crown lands of the Cisleithanian part of the Austro - Hungarian Empire from 1867 to 1918 . During the early 20th century , Moravia was one of the five lands of ___MASK14___ from 1918 to 1928 ; it was then merged with Czech Silesia , and eventually dissolved by abolition of the land system in 1949 . Brandenburg ( Lower Sorbian : " Bramborska ") is one of the sixteen federated states of ___MASK61___ . It lies in the northeast of the country covering an area of 29 , 478 square kilometers and has 2 . 48 million inhabitants . The capital and largest city is Potsdam . Brandenburg surrounds but does not include the national capital and city - state Berlin forming a metropolitan area . ___MASK58___ , officially the Slovak Republic , is a landlocked country in Central Europe . It is bordered by the Czech Republic and Austria to the west , Poland to the north , Ukraine to the east and Hungary to the south . ___MASK58___ ' s territory spans about and is mostly mountainous . The population is over 5 million and comprises mostly ethnic Slovaks . The capital and largest city is Bratislava . The official language is Slovak , a member of the Slavic language family . Lusatia (, , ) is a region in Central Europe . The region is the home of the ethnic group of Lusatian Sorbs , a small Western Slavic nation . It stretches from the Bóbr and Kwisa rivers in the east to the Pulsnitz and Black Elster in the west , today located within the German states of Saxony and Brandenburg as well as in the Lower Silesian and Lubusz voivodeships of western ___MASK32___ . Mladá Boleslav is a city in the Central Bohemian Region of the ___MASK55___ , on the left bank of the Jizera river about northeast of Prague . Founded in the second half of the 10th century by King Boleslav II as a royal castle . Because there already was a castle known as Boleslav near Prague , this new castle was named " Mladá " (" young ") to distinguish it from the older Boleslav , which became known in the 15th century as Stará Boleslav (" Old Boleslav "). The town received partial city rights in 1334 and 1436 , becoming an important site on the road from Prague to northern Bohemia , Lusatia , and Brandenburg . In the 16th century the town was a leading centre of the Unitas Fratrum / Unity of the Brethren / Moravian Church , hosting the Brethren ' s bishop , Renaissance church , and printing house . After being re - Catholicized in the 17th century , the town ' s population declined .