Simplify the following text for a Grade 10 native English-speaking person.
Original: Utagawa Kunisada ( 1786 â `` January 12 , 1865 ) ( Japanese : æ å å 1\/2 è , also known as Utagawa Toyokuni III ä ä '' # æ å è å 1\/2 ) was the most popular , prolific and financially successful designer of ukiyo-e woodblock prints in 19th-century Japan .
Simplified: Utagawa Kunisada ( 1786 - 1865 ) ( Japanese : æ å å 1\/2 è , also called Utagawa Toyokuni III ä ä '' # æ å è å 1\/2 ) was the most popular artist of ukiyo-e in 19th-century Japan .