Final answer:
Mawlay 'Abd al-Malik's main rival for the Moroccan throne was his brother Mawlay Muhammad. Mawlay Muhammad sought support from European powers to secure his position.
Step-by-step explanation:
Mawlay 'Abd al-Malik's main rival for the Moroccan throne was his brother, Mawlay Muhammad. However, their father, Sultan Moulay Ismail, also posed a threat to 'Abd al-Malik's claim to the throne. In his bid for support, Mawlay Muhammad turned to the European powers, particularly France and Britain. He sought their assistance and recognition in an attempt to secure his position as the ruler of Morocco. Despite his efforts, 'Abd al-Malik ultimately succeeded in becoming the Sultan of Morocco, thus establishing his position as the ruler of the country.
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