From 1531, his name is met with in commissions of various kinds, including Justice of the Peace for both for Hampshire and for Sussex, and member of Parliament for Wilton beginning in 1529.
Montagu sent him back to England to inform Queen Catherine that Henry had not succeeded in persuading Francis to countenance his proposed marriage with Anne Boleyn.
Next year, however, his name appears set down, not with his own good will, among the knights appointed 'to be servitors' at Anne Boleyn's coronation on 1 June 1533.
"[5] In 1536, on the suppression of the smaller monasteries, he purchased from the commissioners such goods as then remained of Dureford Abbey in Sussex, near Lordington.
A letter of Lord De la Warr, perhaps misplaced in the ' Calendar' in October 1536, speaks of his causing a riot by a forcible entry into Slindon Park, which he was afterwards ordered in the king's name immediately to quit.
[13] A letter of his to the lord chancellor, dated at Lordington, 5 April, in which he hopes for a return of the king's favour, was probably written in 1538, though placed among the state papers of 1537.
[15] This was a blow aimed at his whole family, whom the king had long meant to crush on account of the opposition to his policies by his brother, Reginald, the cardinal.
For nearly two months, Geoffrey lay in prison; on 26 October a set of interrogations was administered to him, first about words dropped by himself in private conversation, when he had discussed an English religious policy with his brother, Henry, and next about letters and messages he, his mother, or others of his family had received.
Much of the evidence he gave was instrumental in condemning both his brother and mother to the scaffold, primarily because of their loyalty to Princess Mary and the Catholic church.