On 2 February 1553, he assisted in the consecration of John Bale as Bishop of Ossory; and about the same time he published a statement of his doctrinal position;[3] it is dedicated to Edward VI.
He was a member of the lower house of the Convocation of 1563, and on 5 February 1563 was in the minority of 58 who approved of the proposed six formulas committing the Church of England to ultra-Protestant doctrine and practices, as against 59 who opposed the change.
[4] When Sir Henry Sydney went to Ireland as Lord Deputy in October 1565, Lancaster had a royal licence to attend him and absent himself from his spiritual offices.
Sir William Cecil was friendly with him, and wrote to Sidney on 22 July 1567 that Lancaster was to be made Archbishop of Armagh, in succession to Adam Loftus, who had been translated to Dublin.
His will was disputed and the intended foundation of a public grammar school at Drogheda, to be endowed at his cost, and eight scholarships for it at St Edmund Hall, Oxford, came to nothing.