They remained married until Wagner died on February 12 , 1991 .
After Cerf 's death on August 27 , 1971 , she married the former New York City mayor Robert F. Wagner , Jr. on January 30 , 1975 .
They remained married until Robert F. Wagner , Jr. died on February 12 , 1991 .
After Cerf 's death on August 27 , 1971 , she married the former New York City mayor Robert F. Wagner , Jr. on January 30 , 1975 .