The Rev. Clement Kurowski, 83, a Franciscan priest who taught in Catholic high schools in Philadelphia for more than 20 years, died of bone cancer Thursday at the rectory of St. Monica Roman Catholic Church in South Philadelphia.

Born in Chicago, he entered a Franciscan novitiate in 1945 and was ordained a priest at a parish church in Cook, Ind., in 1953.

After serving in schools and parishes in Michigan, Mississippi, Ohio, and Wisconsin, Father Kurowski began his Philadelphia ministry in 1963.

He taught English, Latin, religion, and science from 1963 to 1966 at what is now SS. John Neumann and Maria Goretti Catholic High School. He taught the same subjects at Archbishop Ryan High School from 1966 to 1986, when he retired from teaching.

Father Kurowski began his ministry at St. Monica Church in 1972, serving there on weekends.

In 1986, he was permanently assigned to St. Monica and, though retired from high school work, occasionally taught in the parish elementary school.

Father Kurowski is survived by a niece and a nephew.

After a 4 p.m. evening prayer at St. Monica tomorrow, a visitation will take place there until a 7 p.m. parish Mass.

The Funeral Mass is set there for 11 a.m. Thursday, followed by burial in SS. Peter and Paul Cemetery, Marple Township.