They have a son named John Mungo age 6.
May 25, 2018 - Present
In September 2012 Grant had a second child, John Mungo Grant, with Swedish television producer Anna Eberstein. He subsequently reunited with Hong, with whom he had his third child, Felix Grant, in 2013. Grant and Eberstein then had a second child, Grant's fourth, in December 2015. In May of 2018 it was revealed that Grant and Jenny had become engaged, and were likely to marry at the end of that month.
Grant and Eberstein then had a second child, Grant's fourth, in December 16, 2015.
January 2018 it was reported that they were excepting baby #3.