John Hamilton, 4th of Orbiston (died 1621) (d. 1621) Parents Margaret Hamilton John Hamilton, 3rd of Orbiston Children Sir John Hamilton, 5th of Orbiston unknown daughter Hamilton Grissell Hamilton James Hamilton, 1st of Dalzell Margaret Hamilton Marion Hamilton Agnes Hamilton Janet Hamilton Siblings Marjory Hamilton Margaret Hamilton Gavin Hamilton Robert Hamilton Isobel Hamilton Partners Christian Dalzell