Who married Caroline FitzGerald?

Edmond George Petty-Fitzmaurice, 1st Baron Fitzmaurice, (19 June 1846 – 21 June 1935), styled Lord Edmond FitzMaurice from 1863 to 1906, was a British Liberal politician. He served as Under-Secretary of State for Foreign Affairs from 1883 to 1885 and again from 1905 to 1908, when he entered the cabinet as Chancellor of the Duchy of Lancaster under H. H. Asquith. However, illness forced him to resign the following year.