Bromley's married, by 1560 at latest, Elizabeth Fortescue, daughter of Sir Adrian Fortescue, a Hertfordshire landowner. Sir Adrian was executed on 9 July 1539 under an act of attainder that was mainly directed at the Pole family, including the Countess of Salisbury. However Fortescue's offence was unspecified, the clause relating to him mentioning "diverse and sundrie detestable and abhomynable treasons." In the 17th century Sir Adrian was to be venerated as a Catholic martyr and he was beatified in 1895. However, the real reasons for his execution remain mysterious and it is not at all clear that he was a religious conservative: in fact, his earlier period in favour had been because of his kinship to Anne Boleyn but he seems to have been on poor terms with Thomas Cromwell. So he may have been attached to the attainder as an act of political or personal spite among Protestants.