Question: Who is Maurice Fitzgerald, 4Th Earl Of Kildare's paternal grandfather?

Knowledge 1: Maurice FitzGerald, 4th Earl of Kildare
Maurice FitzThomas FitzGerald, 4th Earl of Kildare (1318 - 25 August 1390) was a prominent Irish nobleman in the Peerage of Ireland who held the office of Lord Justice of Ireland.The second son of Thomas FitzGerald, 2nd Earl of Kildare by his spouse Joan (d.1359), daughter of Richard de Burgh, 2nd Earl of Ulster, he succeeded his brother Richard, 3rd Earl, who died aged 12 in 1329.Maurice, Earl of Kildare, suppressed the insurrection in 1339 of the O'Dempsies in Leinster; and in November 1346, with Lord Justice Bermingham, forced the O'Mores to submit and give hostages for their future good behaviour.In 1346 he was himself imprisoned due to suspicion about his loyalty to the Crown, but was soon released and restored to favour.On 26 January 1347 he was summoned by Writ signed at Eltham Palace to serve King Edward III at the siege of Calais where he proceeded in May with thirty men-at-arms and was subsequently made leader of the army, and knighted.With various irregulars and foot-soldiers assigned to defend County Kildare against rebel Irish, the earl was appointed, on 14 September 1358, supervisor of the four commissioners for raising and collecting their pay from that county.On 30 March 1360 he was constituted Lord Justice of Ireland with an annual salary of £500 sterling.He was made "Custos" of the realm again on 22 March 1371, and a third time on 16 February 1375, until the return of Sir William Windsor.In 1364 he headed a delegation of Irish nobles and officials to complain directly to King Edward III about the misgovernment of Ireland, and the corruption of certain officials, notably Thomas de Burley, the Lord Chancellor of Ireland.In 1378 he petitioned King Richard II that he had, at his request, accompanied the Lord Justice, James Butler, 2nd Earl of Ormond "in a certain amount of great hosting" of the O'Morchoes of Slewmargy (Sliabh Mairge), with numerous horsemen in his retinue, whereof six of his men were lost as well as four coats of mail and other armour.He asked for recompense, of which the King granted £10 sterling from the Exchequer of Ireland on 21 May 1378.On 22 January 1377 he was summoned to the Parliament held at Castledermot; and on 11 September 1381 to that held at Trim; and on 29 April 1382 to that held at Dublin.He was, with Sir Philip Courtenay, the Lord Justice, active in imposing law and order in Leinster and Meath and elsewhere, and in resisting rebels all at his own expense.His reward came partly in the form of a grant, dated 20 April 1386, of the estate of Sir William de London in the counties of Kildare and Meath during the minority of his son and heir, John de London.On 5 August 1389 he was enfeoffed in the manors of Lucan, County Dublin, Kildrought (now Celbridge), and Kilmacredock, County Kildare, held from the Crown "in capite" for him and his heirs forever.On 29 May 1390 a Writ was issued to him to remove O'Connor, son of Dough O'Dempsie, the King's Irish enemy currently detained in Kildare Castle, to Dublin Castle for safer custody.He died at an advanced age in 1390, and was interred in the Church of the Holy Trinity, now Christchurch Cathedral, Dublin.Maurice, Earl of Kildare, married Elizabeth de Burghersh, 3rd Baroness Burghersh, daughter of Sir Bartholomew de Burghersh, 2nd Baron Burghersh, KG., and his first wife Cecily Weyland, and had at least four children, including: [SEP] Knowledge 2: Thomas FitzGerald, 2nd Earl of Kildare
Thomas FitzJohn FitzGerald, 2nd Earl of Kildare, Lord Offaly (died 9 April 1328) was a noble in the Peerage of Ireland who held the office of Lord Justice of Ireland.The eldest son of John FitzGerald, 1st Earl of Kildare, Lord Offaly, by his spouse Blanche Roche, daughter of John Roche, Lord Fermoy, the second earl was appointed commander of 30,000 men to fight Edward Bruce and the Scots.But with Roger, Lord Mortimer landing about the same time at Youghal the engagement was deferred until his force could also join them.Bruce was in the meantime defeated and killed in 1318, putting an end to the Scottish kingdom in Ireland.In 1318 Thomas was appointed Lord Justice of Ireland (until 1321) and later reappointed in February 1326, holding the office until his death two years later at Maynooth.He was interred in the Franciscan Friary at Kildare.He married at Greencastle, County Down on 16 August 1312, Joan (d. 23 April 1359), the third daughter of Richard de Burgh, 2nd Earl of Ulster, and had issue:
Knowledge 1: Maurice FitzGerald, 4th Earl of Kildare
Maurice FitzThomas FitzGerald, 4th Earl of Kildare (1318 - 25 August 1390) was a prominent Irish nobleman in the Peerage of Ireland who held the office of Lord Justice of Ireland.The second son of Thomas FitzGerald, 2nd Earl of Kildare by his spouse Joan (d.1359), daughter of Richard de Burgh, 2nd Earl of Ulster, he succeeded his brother Richard, 3rd Earl, who died aged 12 in 1329.Maurice, Earl of Kildare, suppressed the insurrection in 1339 of the O'Dempsies in Leinster; and in November 1346, with Lord Justice Bermingham, forced the O'Mores to submit and give hostages for their future good behaviour.In 1346 he was himself imprisoned due to suspicion about his loyalty to the Crown, but was soon released and restored to favour.On 26 January 1347 he was summoned by Writ signed at Eltham Palace to serve King Edward III at the siege of Calais where he proceeded in May with thirty men-at-arms and was subsequently made leader of the army, and knighted.With various irregulars and foot-soldiers assigned to defend County Kildare against rebel Irish, the earl was appointed, on 14 September 1358, supervisor of the four commissioners for raising and collecting their pay from that county.On 30 March 1360 he was constituted Lord Justice of Ireland with an annual salary of £500 sterling.He was made "Custos" of the realm again on 22 March 1371, and a third time on 16 February 1375, until the return of Sir William Windsor.In 1364 he headed a delegation of Irish nobles and officials to complain directly to King Edward III about the misgovernment of Ireland, and the corruption of certain officials, notably Thomas de Burley, the Lord Chancellor of Ireland.In 1378 he petitioned King Richard II that he had, at his request, accompanied the Lord Justice, James Butler, 2nd Earl of Ormond "in a certain amount of great hosting" of the O'Morchoes of Slewmargy (Sliabh Mairge), with numerous horsemen in his retinue, whereof six of his men were lost as well as four coats of mail and other armour.He asked for recompense, of which the King granted £10 sterling from the Exchequer of Ireland on 21 May 1378.On 22 January 1377 he was summoned to the Parliament held at Castledermot; and on 11 September 1381 to that held at Trim; and on 29 April 1382 to that held at Dublin.He was, with Sir Philip Courtenay, the Lord Justice, active in imposing law and order in Leinster and Meath and elsewhere, and in resisting rebels all at his own expense.His reward came partly in the form of a grant, dated 20 April 1386, of the estate of Sir William de London in the counties of Kildare and Meath during the minority of his son and heir, John de London.On 5 August 1389 he was enfeoffed in the manors of Lucan, County Dublin, Kildrought (now Celbridge), and Kilmacredock, County Kildare, held from the Crown "in capite" for him and his heirs forever.On 29 May 1390 a Writ was issued to him to remove O'Connor, son of Dough O'Dempsie, the King's Irish enemy currently detained in Kildare Castle, to Dublin Castle for safer custody.He died at an advanced age in 1390, and was interred in the Church of the Holy Trinity, now Christchurch Cathedral, Dublin.Maurice, Earl of Kildare, married Elizabeth de Burghersh, 3rd Baroness Burghersh, daughter of Sir Bartholomew de Burghersh, 2nd Baron Burghersh, KG., and his first wife Cecily Weyland, and had at least four children, including: [SEP] Knowledge 2: Charles FitzGerald, 4th Duke of Leinster
Charles William FitzGerald, 4th Duke of Leinster,( 30 March 1819 – 10 February 1887), styled Marquess of Kildare until 1874, was an Irish peer and politician.
Knowledge 1: Maurice FitzGerald, 4th Earl of Kildare
Maurice FitzThomas FitzGerald, 4th Earl of Kildare (1318 - 25 August 1390) was a prominent Irish nobleman in the Peerage of Ireland who held the office of Lord Justice of Ireland.The second son of Thomas FitzGerald, 2nd Earl of Kildare by his spouse Joan (d.1359), daughter of Richard de Burgh, 2nd Earl of Ulster, he succeeded his brother Richard, 3rd Earl, who died aged 12 in 1329.Maurice, Earl of Kildare, suppressed the insurrection in 1339 of the O'Dempsies in Leinster; and in November 1346, with Lord Justice Bermingham, forced the O'Mores to submit and give hostages for their future good behaviour.In 1346 he was himself imprisoned due to suspicion about his loyalty to the Crown, but was soon released and restored to favour.On 26 January 1347 he was summoned by Writ signed at Eltham Palace to serve King Edward III at the siege of Calais where he proceeded in May with thirty men-at-arms and was subsequently made leader of the army, and knighted.With various irregulars and foot-soldiers assigned to defend County Kildare against rebel Irish, the earl was appointed, on 14 September 1358, supervisor of the four commissioners for raising and collecting their pay from that county.On 30 March 1360 he was constituted Lord Justice of Ireland with an annual salary of £500 sterling.He was made "Custos" of the realm again on 22 March 1371, and a third time on 16 February 1375, until the return of Sir William Windsor.In 1364 he headed a delegation of Irish nobles and officials to complain directly to King Edward III about the misgovernment of Ireland, and the corruption of certain officials, notably Thomas de Burley, the Lord Chancellor of Ireland.In 1378 he petitioned King Richard II that he had, at his request, accompanied the Lord Justice, James Butler, 2nd Earl of Ormond "in a certain amount of great hosting" of the O'Morchoes of Slewmargy (Sliabh Mairge), with numerous horsemen in his retinue, whereof six of his men were lost as well as four coats of mail and other armour.He asked for recompense, of which the King granted £10 sterling from the Exchequer of Ireland on 21 May 1378.On 22 January 1377 he was summoned to the Parliament held at Castledermot; and on 11 September 1381 to that held at Trim; and on 29 April 1382 to that held at Dublin.He was, with Sir Philip Courtenay, the Lord Justice, active in imposing law and order in Leinster and Meath and elsewhere, and in resisting rebels all at his own expense.His reward came partly in the form of a grant, dated 20 April 1386, of the estate of Sir William de London in the counties of Kildare and Meath during the minority of his son and heir, John de London.On 5 August 1389 he was enfeoffed in the manors of Lucan, County Dublin, Kildrought (now Celbridge), and Kilmacredock, County Kildare, held from the Crown "in capite" for him and his heirs forever.On 29 May 1390 a Writ was issued to him to remove O'Connor, son of Dough O'Dempsie, the King's Irish enemy currently detained in Kildare Castle, to Dublin Castle for safer custody.He died at an advanced age in 1390, and was interred in the Church of the Holy Trinity, now Christchurch Cathedral, Dublin.Maurice, Earl of Kildare, married Elizabeth de Burghersh, 3rd Baroness Burghersh, daughter of Sir Bartholomew de Burghersh, 2nd Baron Burghersh, KG., and his first wife Cecily Weyland, and had at least four children, including: [SEP] Knowledge 2: Elizabeth de Burghersh, 3rd Baroness Burghersh
Elizabeth Despencer, 3rd Baroness Burghersh( c. 1342 – August 1402) was an English noblewoman born to Bartholomew de Burghersh, 2nd Baron Burghersh and Cicely Weyland.Some recently constructed genealogies purport that she was first married, some time after 1347, to Maurice FitzGerald, 4th Earl of Kildare( d. 25 August 1390) and by him had at least four children.Yet it is more consistent with known dates of death of the 4th Earl of Kildare that he married instead Margaret, a daughter of the 1st Baron Burghersh.Otherwise there would be record of Kildare's divorce from Elizabeth and probably a mention in the original records of her' remarriage' rather than of her' marriage' to le Despencer.She was married( it is said for the second time) some time before 1373, to Edward le Despencer, 1st Baron le Despencer( c. 24 March 1335- 6 – 11 November 1375) and they had six children.Upon the death of her father on 5 April 1369, she inherited the title of Baroness Burghersh.

Answer: John FitzGerald, 1st Earl of Kildare