Princess Lalla Hasna of Morocco (Arabic: الأميرة لالة حسناء‎ ‎ , born 19 November 1967 in Rabat) is the youngest daughter of King Hassan II and his second wife, Lalla Latifa Hammou.
 She is sister to the current king, Mohammed VI and Prince Moulay Rachid.
Princess Lalla Latifa Amahzoune (Berber: ; Arabic: لالة لطيفة أمحزون‎ ‎ – born 1945 or 1946) in Khenifra is the widow of King Hassan II and the mother of Princess Lalla Meryem, King Mohammed VI, Princess Lalla Asma, Princess Lalla Hasna and Prince Moulay Rachid.
 She is referred to using terms such as "mother of the royal children".
 The privacy accorded to her in Morocco is so great that attempts to publish photos of her in the Moroccan newspaper "Al Ayam" were found to violate Moroccan law (in accord with a 1956 decree prohibiting publication of photos of the king and his family without authorization).
Princess Lalla Khadija of Morocco (born 28 February 2007) is the younger child of King Mohammed VI of Morocco and his wife, Princess Lalla Salma.
 Lalla Khadija's elder brother is Moulay Hassan, Crown Prince of Morocco.
Johann Georg Hitler (baptised 28 February 1792 – 9 February 1857) was considered the officially accepted paternal grandfather of Adolf Hitler by the Third Reich.
 Whether Johann Georg was in fact Hitler's biological paternal grandfather is disputed by modern historians.
Nerses I the Great (Armenian: Սուրբ Ներսես Ա.
 Մեծ ) was an Armenian Catholicos (or Patriarch) who lived in the fourth century.
 He was the son of At'anagenes and his mother was the Arsacid Princess Bambish, a sister of King Tigranes VII (Tiran) and a daughter of King Khosrov III.
 His paternal grandfather was St. Husik I whose paternal grandfather was Saint Gregory the Illuminator.
Princess Lalla Aicha of Morocco, DCVO, (17 June 1931 – 4 September 2011) was the younger sister of the late King Hassan II of Morocco, and daughter of King Mohammed V of Morocco and his second wife, Lalla Abla bint Tahar.
Mohammed VI (Arabic: محمد السادس‎ ‎ , Berber: ; born 21 August 1963) is the King of Morocco.
 He ascended to the throne on 23 July 1999 upon the death of his father, King Hassan II.
Princess Lalla Malika (born 14 March 1933) is a sister of the late King Hassan II of Morocco, and daughter of King Mohammed V of Morocco and his second wife, Lalla Abla bint Tahar.
 She has been the chairwoman of the Moroccan Red Crescent since 1967.
Prince Moulay Hassan (born 8 May 2003) is the heir apparent to the Moroccan throne.
 He is the elder child of King Mohammed VI of Morocco and his wife Princess Lalla Salma.
 He has a younger sister, Princess Lalla Khadija.
 He is named after his grandfather Hassan II; when he ascends the throne, he is expected to reign as Hassan III.
Lalla Bahia bint Antar (died 3 September 2008 in Rabat) was a third wife of Mohammed V of Morocco, who reigned from 1927 until 1961.
 Bahia was also the mother of Princess Lalla Amina of Morocco.

Question: Who is Princess Lalla Khadija's paternal grandfather?
Answer: King Hassan II