Hungarian campaign In pursuit of his military career, with his West Country cousins, Godolphins, Carews, Killigrews, Champernownes, Basets, etc., Grenville fought against the
Turks in
Hungary for the Holy Roman Emperor, Maximilian
in 1566. After petitioning Elizabeth I in 1565 to leave England for service abroad to a foreign prince, Grenville and his West Country cousins paid for and recruited a troop of West Countrymen to accompany them.
Colonisation in Ireland In 1569, he arrived in Ireland with Sir
Warham St Leger (c. 1525–1597) to arrange for settlement of lands in the
Barony of Kerricurrihy. These had been mortgaged to St Leger by
Gerald Fitzgerald, 15th Earl of Desmond. At about this time Grenville also seized lands for colonisation at
Tracton, to the west of
Cork harbour. Sir
Peter Carew had asserted his claim to lands in south
Leinster. St Leger settled nearby, and
Humphrey Gilbert pushed westward from Idrone along the
Blackwater River. The plantations in the south of Ireland led to bitter disputes with local Irish nobility. They escalated into the first of the
Desmond rebellions, led by
James Fitzmaurice Fitzgerald. As Sheriff of Cork, Grenville witnessed the rebellion in which Fitzmaurice, along with the Earl of Clancar,
James Fitzedmund Fitzgerald (the
Seneschal of
Imokilly);
Edmund Fitzgibbon (the White Knight); and others, attacked Tracton. They overcame the English defence with
pickaxes and killed nearly the entire
garrison. The three surviving English soldiers were hanged the next day by the Irish. Fitzmaurice threatened the imminent arrival of Spanish forces. Having plundered the citizenry of Cork, he boasted that he could also take the artillery of the city of
Youghal. In June 1569, soon after Grenville's sailing for England, Fitzmaurice camped outside the walls of
Waterford and demanded that Grenville's wife and Lady St Leger be given over to him, along with all the English and all prisoners; the citizens refused. Fitzmaurice's troops massacred local English farmers in response. As Cork ran low on provisions, the people of Youghal expected an attack at any minute. The rebellion continued, but Grenville remained in England. ==Return to England==