Simplify the following text for a Grade 11 native English-speaking person.
Original: Anna Maria was the child of the artist Philip Jacob Thelott the Older , originally from Switzerland , and the sibling of the artist Philip Jacob Thelott the Younger , and worked as a child with her brothers and her father in her father 's studio in the work in illustrating the works of Olof Rudbeck the Older , `` Campus Elysii '' and `` Atlantica '' ; soon , she started to contribute to the household by taking assignments herself and performing different artistic works for money , thereby becoming an independent artist .
Simplified: Anna Maria was the daughter of the artist Philipp Jacob Thelott the Older , and sister of the artist Philip Jacob Thelott the Younger . When she was a child , she worked together with her brother and her father to illustrate the books `` Campus Elysii '' and `` Atlantica '' , by Olof Rudbeck , and when she was grown up , she started to work alone and illustrate papers and maps and other things .