The starlet's 52-year-old father and Major announced their engagement in 2010, three years after his split with Dina Lohan.
[Michael Lohan and Kate Major]
TMZ reports that Major gave birth to the couple's first child on Wednesday (January 30) at a Florida hospital.
Representatives revealed that the baby boy, born at 11.39am, has been named Landon Major Lohan.
This is the former Celebrity Rehab star's sixth child. He recently acknowledged an estranged daughter on the Trisha Goddard Show.
Michael recently threatened ex-wife Dina with a lawsuit after she accused him of raping her during their marriage.
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