On the final sitting of the parliament, he voted in support of the Acts of Union 1707 and received a nominal payment as his share of the compensation fund.
The couple had four children: a son, also named George (1670 – 12 January 1718) who went on to become the 4th Lord Banff; and three daughters, Anne, Isobel and the youngest Mary who was born in 1679.
[3] Addressing the Edinburgh Philosophical Institution in 1871, the Earl of Rosebery referred to Ogilvy as having "sold his country and religion for a 10/- [ten shilling] note".
[10] His death was described in the new Statistical Accounts of Scotland of 1834–45:[11] It is said that he had gone for some time to Ireland, engaged probably in some of the intrigues then carrying on in behalf of the Pretender; and it was suspected that the persons in whose charge he had left the castle, having pillaged some of his valuable property, murdered him immediately after his return, and set his apartment on fire for the sake of concealment.
By some, it seems, the event was viewed as a judgment on his apostacy, and particularly with regard to some threats used by him of burning the Protestants.After Ogilvy's death his son, George, inherited the estates and succeeded to the title becoming the 4th Lord Banff in 1713.