There are 17 Chopin Polonaises. A Polonaise is a Polish Dance and a very popular one still widely performed in  Poland  and for example at balls as the traditional first dance at student balls  -  often held 100 days before exams start. They have a French name because 3 French princesses married three Polish Kings in the 17th C. 

A Mazurka is a Polish folk song derivived dance witha  particular rhytmn featuring an accent on the seconf or third beat of the bar Mazurkas as well as Polkas became popular in 19th C ball rooms across Europe. 59 are listed on the Chopin Blog : https://chopinrecordings.blogspot.com/2018/11/chopin-works-complete-list.html