Robert II of Scotland
Robert II (2 March 1316 – 19 April 1390) reigned as King of Scots from 1371 to his death as the first monarch of the House of Stewart.
He was the son of Walter Stewart, 6th High Steward of Scotland and of Marjorie Bruce, daughter of the Scottish king Robert the Bruce by his first wife Isabella of Mar.
Edward Bruce, younger brother of Robert the Bruce, was named heir presumptive but died without heirs on 3 December 1318.
Marjorie had died probably in 1317 in a riding accident and parliament decreed her infant son, Robert Stewart, as heir presumptive, but this lapsed on 5 March 1324 on the birth of a son, David, to King Robert and his second wife, Elizabeth de Burgh.
Robert Stewart became High Steward of Scotland on his father's death on 9 April 1326, and in the same year parliament confirmed the young Steward as heir should Prince David die without a successor.
In 1329 King Robert I died and the six-year-old David succeeded to the throne under the guardianship of Thomas Randolph, Earl of Moray.
Edward Balliol, son of King John Balliol—assisted by the English and those Scottish nobles who had been disinherited by Robert I—invaded Scotland inflicting heavy defeats on the Bruce party on 11 August 1332 at Dupplin Moor and Halidon Hill on 19 July 1333.
Robert, who had fought at Halidon joined his uncle, King David in refuge in Dumbarton Castle.
David escaped to France in 1334 and parliament, still functioning, appointed Robert and John Randolph, 3rd Earl of Moray as joint Guardians of the kingdom.
Randolph was captured by the English in July 1335 and in the same year Robert submitted to Balliol bringing about the removal of his guardianship.
The office was reinstated in 1338 and Robert held it until David's return from France in June 1341.
Hostilities continued and Robert was with David at the Neville's Cross on 17 October 1346 and either escaped or fled the field
but David was captured and remained a prisoner until he was ransomed in October 1357.
Robert married Elizabeth Mure around 1348, legitimising his four sons and five daughters.
His subsequent marriage to Euphemia de Ross in 1355 produced two sons and two surviving daughters.
Robert rebelled against the King in 1363 but submitted to him following a threat to his right of succession.
David died in 1371 and Robert succeeded him at the age of fifty-five.
The border magnates continued to attack English-held zones in southern Scotland and by 1384, the Scots had re-taken most of the occupied lands.
Robert ensured that Scotland was included in the Anglo-French truce of 1384 and that was a factor in the coup in November when he lost control of the country first to his eldest son, John, and then from 1388 to John's younger brother, Robert.
King Robert died in Dundonald Castle in 1390 and was buried at Scone Abbey.
Thomas Stewart (bishop of St Andrews)
Thomas Stewart was an illegitimate son of King Robert II of Scotland.
In 1380, Avignon Pope Clement VII provided Thomas with the Archdeaconry of the Bishopric of St. Andrews, as well as the canonry (and prebend) of Stobo in the Bishopric of Glasgow.
In 1389, the king petitioned and obtained for Thomas from the Pope the right to hold the deanery of the Bishopric of Dunkeld along with his other offices, and in 1393, the Pope provided a canonry in the Bishopric of Brechin.
In this period, Archdeacon Thomas obtained a Bachelor of Canon Law at the University of Paris.
On 1 July 1401, following the death of Walter Trail, Bishop of St. Andrews, Thomas was elected to fill the see's vacancy.
However, because of the problems experienced by Avignon Pope Benedict XIII, who was being besieged by the King of France, Thomas had problems obtaining Papal confirmation.
In this context, Thomas' election fell victim to the political struggles of the time.
Thomas was supported by his nephew, David Stewart, Duke of Rothesay, who actively campaigned in the region of St. Andrews during the year 1401.
However, this aligned him against his half-brother, Robert Stewart, 1st Duke of Albany.
In order to obtain control of Dumbarton Castle, the Duke of Albany offered its keeper, Walter de Danyelston, the semi-vacant see of St. Andrews.
After a meeting between Albany and the Bishop elect at Abernethy in the summer of 1402, Thomas renounced his rights as Bishop and allowed a new "election" to take place.
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
Tom Stewart (cyclist)
Thomas Stewart( born 9 January 1990) is a British racing cyclist who rides for UCI Continental team.
Diana Guardato
Diana Guardato was a member of the aristocratic Patrician Guardato family, and had three children with King Ferdinand I: Diana Guardato is the 16th- Great Grandmother of His Royal Highness Albert II of Belgium, 15th- Great Grandmother of His Majesty Juan Carlos
I of Spain, 17th- Great Grandmother of Philippe of Belgium, 14th- Great Grandmother of His Majesty Manuel II of Portugal, 16th- Great Grandmother of Grand Duke Henri, as well as many others.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Kaoru Hatoyama
After the elections of 2009, she became more widely known as the grandmother of Prime Minister Yukio Hatoyama and his politician brother Kunio Hatoyama.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Mona Hopton Bell
Mona Hopton Bell( 1867- 1940) was a British artist, best known for her portraits of civic figures.
She was the grandmother of the painter Jean H. Bell.
Anne Denman
Anne Denman( 1587–1661) was born in Olde Hall, Retford, Nottinghamshire.
Through a fortunate second marriage with Thomas Aylesbury, she became the grandmother of Lady Anne Hyde, Duchess of York and great- grandmother of Queen Mary II and Queen Anne.

Question: Who is the paternal grandmother of Thomas Stewart (Bishop Of St Andrews)?
Answer: Marjorie Bruce