Martyl Reinsdorf, the wife of Chicago Bulls and White Sox chairman Jerry Reinsdorf, died Monday following a lengthy illness, the teams announced. She was 85.

The teams said she died at her home in Paradise Valley, Arizona.

A creator of Cloisonné jewelry, Martyl Reinsdorf designed five of the Bulls’ six NBA championship rings as well as the White Sox’s 2005 World Series ring. Known as “Grandma Martyl,” she also created and distributed more than 1 million coloring books, crayons, markers and toys to hospitals, orphanages and shelters around the world.