question: Who is Anna Maria Of Ostfriesland's maternal grandmother?
context: [["Anna Maria of Mecklenburg-Schwerin", ["Anna Maria of Mecklenburg- Schwerin( 1 July 1627, in Schwerin \u2013 11 December 1669, in Halle) was a German noblewoman, a member of the House of Mecklenburg and by marriage Duchess of Saxe- Weissenfels.", "She was the fourth child and second daughter of Adolf Frederick I, Duke of Mecklenburg- Schwerin by his first wife Anna Maria, daughter of Enno III, Count of Ostfriesland.", "In older historiography she appears with a third name,\" Dorothea\", but modern historians have discarded it."]], ["Anna Maria of Baden", ["Princess Anna Maria of Baden (22 May 1562 \u2013 25 April 1583) was a German noblewoman."]], ["Hannah Arnold", ["Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children."]], ["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."]], ["Anna Maria of Ostfriesland", ["Anna Maria of Ostfriesland (23 June 1601 \u2013 15 February 1634) was a German noblewoman.", "She was a daughter of Count Enno III of East Frisia and Anna of Holstein-Gottorp.", "Her paternal grandmother was Katharina of Sweden, a daughter of Gustav I of Sweden and his second wife Margareta Leijonhufvud.", "On 4 September 1622 she married Adolf Frederick I, Duke of Mecklenburg-Schwerin (1588\u20131658).", "They had the following children:"]], ["Giorgio Bernini", ["Giorgio Bernini( born 9 November 1928) is an Italian jurist, academic and politician.", "He is the father of Anna Maria Bernini."]], ["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."]], ["Hubba bint Hulail", ["Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic\" Nab\u012b\"( Prophet) Muhammad ibn Abdullah."]], ["Anna of Holstein-Gottorp", ["Anna of Holstein-Gottorp (27 February 1575 \u2013 24 April 1610) was a German noblewoman, daughter of Duke Adolf of Holstein-Gottorp and Landgravine Christine of Hesse (daughter of Landgrave Philip I of Hesse).", "On 28 January 1598, she married Count Enno III of East Frisia.", "They had the following children:"]], ["Anne Denman", ["Anne Denman( 1587\u20131661) 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."]]]
supporting_facts: [["Anna Maria of Ostfriesland", 1], ["Anna of Holstein-Gottorp", 0]]
evidences: [["Anna Maria of Ostfriesland", "mother", "Anna of Holstein-Gottorp"], ["Anna of Holstein-Gottorp", "mother", "Christine of Hesse"]]
answer: Christine of Hesse