His treatment of her was described as "brutal and vicious", and she died after having given birth to two daughters, only one of whom survived: Byron's half-sister, Augusta.
In order to claim his second wife's estate in Scotland, Byron's father took the additional surname "Gordon", becoming "John Byron Gordon", and he was occasionally styled "John Byron Gordon of Gight".
In a move to avoid his creditors, Catherine accompanied her profligate husband to France in 1786, but returned to England at the end of 1787 in order to give birth to her son on English soil.
It is speculated that this was so that his initials would read "N.
Catherine moved back to Aberdeenshire in 1790, where Byron spent his childhood.
which could be partly explained by her husband's continuing to borrow money from her.
Byron's paternal grandparents were Vice-Admiral the Hon.
John "Foulweather Jack" Byron, and Sophia Trevanion.