Casimir IV of Poland King of Poland
He died in 1492.

 St. Casimir the Peacemaker of Poland
St. Casimir the Peacemaker was born in 1458.  He died at the age of 26 in 1484.

 Alexander of Poland King of Poland
Alexander of Poland was born in 1461.  He died at the age of 45 on August 19th, 1506.

 Sophie of Poland
Sophie was born on May 6th, 1464.  She died at the age of 48 on October 5th, 1512.

 Barbara of Poland
Barbara was born on July 15th, 1478.  Barbara is no longer alive.

 John I Albert of Poland King of Poland
He died in 1501.

 Sigismund I the Elder King of Poland
He died in 1548.