Share 'Dame Margaret Douglas'

Hi,  Currently researching Sir Robert Montgomerie of Skelmorlie Castle and his wife Dame Margaret Douglas.  Can you please help me with dates of birth, marriage and death for them with sources?  Have him born 1571 and dying in 1650. Married in 1593. Have her born in 1569, married at 24 in Nov 1593 (according to Nat Archives) and died 1624. Thanks.