Anne f. Hebrew חַנָּה 'grace, favor'.
The name of an apocryphal saint and mother of Mary, the Biblical mother of Samuel, a prophetess mentioned in the gospel of Luke, an 11th C queen consort of the Franks, a 13th C queen of Armenia, a 14th C queen consort of Bohemia, a 14th C queen consort of England, a 14th-15th C duchess of Brittany, a 15th C grand duchess of Lithuania, a 15th C duchess of Luxembourg, a 15th C queen consort of Bohemia and Austria, a 15th C queen consort of England, a 16th C queen consort of Poland and Sweden, three 16th C queens consort of England, a 16th C queen consort of Scotland, a 16th C queen consort of Poland, and two 16th C queens consort of Hungary and Bohemia. Wycliffite Bible (1395): Anna. Geneva Bible (1560): Anáh, Hanna.
Withycombe s.n. Ann notes that the diminutive Nancy didn't become common in England until the 18th century, but pre-1600 examples can be found. The diminutive Nan is witnessed in 1379 in the relational byname Nansoñ (WRYPT1 p. 30).