His sudden and premature death was popularly believed to be due to a chill caught when watching an eclipse of the sun.
On the Restoration of Charles II he managed to retain much of his property, including Crumlin and Terenure in Dublin.
He also owned a manor at Old Leighlin, County Carlow, which he later sold to the local Bishop, Bartholomew Vigors.
He enjoyed the friendship of the powerful William King, Archbishop of Dublin who recommended him to the English Crown as a man of great sense, knowledge of the law, honesty and good temper.
Deane was made a Privy Councillor and on the accession of King George I, he became the Irish Chief Baron.