Isabella of Scotland, Countess of Norfolk
"Not to be confused with Isabella of Scotland, Duchess of Brittany"
Isabella of Scotland (1195–after 1253) also known as "Isobel" or "Isabel" was a daughter of William the Lion, King of Scotland and his wife Ermengarde de Beaumont.
She was a member of the House of Dunkeld and by marriage she was Countess of Norfolk.
Ermengarde de Beaumont
Ermengarde de Beaumont (c. 1170 – 11 February 1233) was Queen of Scotland as the wife of
King William I. She is reported to have exerted influence over the affairs of state as queen, though the information of her is lacking in detail.
William Comyn of Kirkintilloch
William Comyn of Kirkintilloch( died 1291) was a 13th- century Scottish nobleman.
He was a son of John Comyn, Lord of Badenoch( died c. 1275) and Alicia de Ros. William was married to Isabella Russell, daughter of Isabella, Countess of Menteith and John Russell.
Petitions were placed to King Edward I of England and King Alexander III of Scotland claiming the Earldom of Mentieth, in the right of Isabella, his wife and in 1285 half the lands of the Earldom of Mentieth were granted to William and Isabella.
The title of the Earl of Mentieth was kept by Walter Bailloch, jure uxoris by his wife Mary, sister of Isabella, Countess of Menteith.
William died in 1291, without issue by his own wife.
Maud Marshal
Maud Marshal, Countess of Norfolk, Countess of Surrey( 1192 – 27 March 1248) was an Anglo- Norman noblewoman and a wealthy co-heiress of her father William Marshal, 1st Earl of Pembroke, and her mother Isabel de Clare" suo jure" 4th Countess of Pembroke.
Maud was their eldest daughter.
She had two husbands: Hugh Bigod, 3rd Earl of Norfolk, and William de Warenne, 5th Earl of Surrey.
Maud was also known as Matilda Marshal.
Isabella of France, Dauphine of Viennois
" For other persons named Isabella of France, see Isabella of France( disambiguation)" Isabella of France and Burgundy( 1310 – April 1348) was the daughter of Philip V of France and Joan II, Countess of Burgundy.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Anne Yelverton
Anne Yelverton( 1628–1698) was Countess of Manchester and Countess of Halifax.
Tahira Wasti
Tahira Wasti( 1944 – March 11, 2012) was a well- known Pakistani writer and television actress.
She is best known for portrayal of Isabella of Castile in the TV drama" Shaheen".
Isabella of Clermont
Isabella of Clermont( – 30 March 1465), also known as Isabella of Taranto, was a Sovereign Princess of Taranto and first Queen consort of Ferdinand I of Naples.
Isabella, Countess of Foix
Isabella of Foix also known as" Isabella of Foix- Castelbon"( before 2 November 1361- 1428) was sovereign Countess of Foix and Viscountess of Béarn from 1399 until 1428.
She was Countess of Foix in her own right, but shared power with her husband and later with her son.
She succeeded as countess along with her husband upon the death of her childless brother Matthew.

Question: What is the date of birth of Isabella Of Scotland, Countess Of Norfolk's mother?
Answer: 1170