Rabbi Tzvi Kushlefsky, a Rosh Yeshiva in Yerushalayim, has just fathered a firstborn son at the age of 88 years old. He became a widower at the age of 82 and remarried a 50-year-old woman who had several children previously. The baby was born at Jerusalem’s Hadassah Medical Center.
https://anash.org/yerushalayim-rosh-yeshiva-has-firstborn-son-at-88-years-old/