[2] A eulogic poem by William Douglas of Tofts mentioned that the Earl had traveled through most parts of Europe and was a student of mathematics and astrology.
[3] His daughter Anne was married on 9 December 1630 to her kinsman Sir William Kerr of Ancrum, who was created a new Earl of Lothian on 31 October 1631.
[3] That Saturday Robert Kerr dismissed his servants from him and went alone to a chamber in Newbattle Abbey, saying he was writing his letters and accounts.
As he had no male heirs, he had obtained a charter in 1621 for his lands and titles so that his daughter, Anne Kerr, could succeed him, provided that she married a member of the family of Ker.
However, Sir Robert Kerr of Ancram was apparently given control of the Earl's possessions by James VI of Scotland in 1625.