Who was the King of Alba Longa?

The title "King of Alba Longa" was held by multiple individuals in Roman mythology. Alba Longa was an ancient city in Latium in central Italy. According to Roman mythology, it was founded by Ascanius, the son of Aeneas, a Trojan hero and the ancestor of Romulus and Remus, the founders of Rome.

Here are the steps to answer your question:

1. Identify the time period: The kings of Alba Longa reigned in the mythical period before the founding of Rome (traditionally 753 BC).

2. Understand the lineage: The kingship was often kept within the family, passed from father to son.

3. Name the kings: There were many kings of Alba Longa, starting with Ascanius. Other notable kings include Silvius, who was said to be the son of Ascanius, and Numitor, who was the father of Rhea Silvia and the grandfather of Romulus and Remus.

4. Identify the last king: The last king of Alba Longa was Amulius. He overthrew his brother Numitor and forced Rhea Silvia to become a Vestal Virgin so she would not have any children who could overthrow him. However, Rhea Silvia was impregnated by the god Mars and gave birth to Romulus and Remus, who eventually overthrew Amulius and reinstated their grandfather Numitor as king.

So, depending on the time frame you're asking about, the King of Alba Longa could be any of these individuals or others in the line of succession.