Complex sentence: The LJCC was previously known as the Spiro Institute, which was created by Robin Spiro and his wife Nitza, who was executive director of the Spiro Institute from 1983 to 1998.
Split into simpler sentences: The LJCC was previously known as the Spiro Institute. The Spiro Institute was created by Robin Spiro and his wife Nitza, who was its executive director from 1983 to 1998.