Hugh and Gelis had only one son Hugh Montgomerie 5th Earl of Eglington .
1576 Hew Montgomerie of Hassilheid ( Hazelhead ) was witness to the marriage of Hugh Montgomery ( afterwards the 4th Earl ) of Eglington to Gelis Boyde daughter of Robert Lord Boyde .
Hugh and Gelis had only one son Hugh Montgomerie 5th Eglington     .
1576 Hew Montgomerie of Hassilheid ( Hazelhead ) was witness to the marriage of Hugh Montgomery ( afterwards the 4th Earl ) of Eglington to Gelis Boyde daughter of Robert Lord Boyde .