Simplify the following text for a Grade 5 native English-speaking person.
Original: The current administrative unit of Silesian Voivodeship is just a fraction of the historical Silesia which is within the borders of today 's Poland ( there are also fragments of Silesia in the Czech Republic and Germany ) .
Simplified: Silesian Voivodeship is one of the 16 Voivodeships of Poland . It can be found in the south Poland and in east Silesia ( called Upper Silesia ) .