Skip to main content

Sussex, Thomas Radcliffe, 3d earl of

Thomas Radcliffe Sussex, 3d earl of, 1526?–1583, English nobleman. Styled Viscount Fitzwalter after his father became (1542) the 2d earl of Sussex, he served in the army in France and on diplomatic missions abroad. In 1554 he was made Baron Fitzwalter, and in 1557 he succeeded his father as earl of Sussex. He served as lord deputy of Ireland under Mary I (1556–58) and again (1559–64) under Elizabeth I, who gave him the title of lord lieutenant. Sussex was a vigorous general, although he never succeeded in subduing Shane O'Neill, and during his administration English influence was forcefully extended outside the Pale. Sussex's desire for Elizabeth to marry outside England brought him into sharp conflict with the earl of Leicester. His attempts to negotiate a marriage between the queen and Archduke Charles of Austria, brother of Holy Roman Emperor Maximilian II, collapsed in 1567. In 1568, Sussex became lord lieutenant of the north, and he aided in the suppression of the revolt (1569–70) of the earls of Northumberland and Westmorland. He became lord chamberlain in 1572.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Sussex, Thomas Radcliffe, 3d earl of." The Columbia Encyclopedia, 6th ed.. . 10 Dec. 2018 <>.

"Sussex, Thomas Radcliffe, 3d earl of." The Columbia Encyclopedia, 6th ed.. . (December 10, 2018).

"Sussex, Thomas Radcliffe, 3d earl of." The Columbia Encyclopedia, 6th ed.. . Retrieved December 10, 2018 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.