Question: One of the two Roman dictators was awarded his grass crown during what war?

Context paragraphs:
Cathedral of the Immaculate Conception (Moscow): The Cathedral of the Immaculate Conception of the Holy Virgin Mary is a neo-Gothic Roman Catholic Church at Moscow's center, that serves as the cathedral of the Roman Catholic Archdiocese of Moscow.  Located in the Central Administrative Okrug, it is one of only two Roman Catholic churches in Moscow and the largest in Russia.

Grass Crown: The Grass Crown or Blockade Crown (Latin: "corona graminea" or "corona obsidionalis") was the highest and rarest of all military decorations in the Roman Republic and early Roman empire.  It was presented only to a general, commander, or officer whose actions saved a legion or the entire army.  One example of actions leading to awarding of a grass crown would be a general who broke the blockade around a beleaguered Roman army.  The crown was made from plant materials taken from the battlefield, including grasses, flowers, and various cereals such as wheat; it was presented to the general by the army he had saved.

Neo-Bonapartism: Neo-Bonapartism or neo-Bounapartism is a political ideology focusing around a strong leader, who is often a hero to the people, and upholds - or at least seems to uphold - the ideals of the people.  With Bonapartism specifically referring to the case of Napoleon I of France, the term neo-Bonapartism first came to use with the rise of Louis Napoleon III.  However, this is not a true example of what neo-Bonapartism has come to symbolize.  M. Raoul Duval is given as example in contemporary France.  Neo-Bonapartism can also be used to specifically refer to movements after Napoleon I, but it need not be confined to such.  Ironically, the best example of Bonapartism may be Roman dictators from the Republican Period, like Julius Caesar, who attempted to quash the power of the Senate and advance the rights and welfare of the people.

Sulla: Lucius Cornelius Sulla Felix ( ; c. 138 BC – 78 BC), known commonly as Sulla, was a Roman general and statesman.  He had the distinction of holding the office of consul twice, as well as reviving the dictatorship.  Sulla was a skillful general, achieving numerous successes in wars against different opponents, both foreign and Roman.  He was awarded a grass crown, the most prestigious Roman military honor, during the Social War.

Roman temple of Alcántara: The Roman temple of Alcántara is located at one side of the Alcántara Bridge, Cáceres, Extremadura (Spain).  Along with the Roman temple of Vic, it is one of the only two Roman temples preserved nearly complete in Spain.

Battle of Arausio: The Battle of Arausio took place on 6 October 105 BC, at a site between the town of Arausio (modern day Orange, Vaucluse) and the Rhône River.  Ranged against the migratory tribes of the Cimbri under Boiorix and the Teutoni were two Roman armies, commanded by the proconsul Quintus Servilius Caepio and consul Gnaeus Mallius Maximus.  However, bitter differences between the commanders prevented the Roman armies from cooperating, with devastating results.  The terrible defeat gave Gaius Marius the opportunity to come to the fore and radically reform the organization and recruitment of Roman legions.  Roman losses are described as being up to 80,000 troops, as well as another 40,000 auxiliary troops (allies) and servants and camp followers — virtually all of their participants in the battle.  In numbers of losses, this battle is regarded as the worst defeat in the history of ancient Rome.

Lex Antonia: Lex Antonia (Latin for "Antonine law", sometimes presented plurally as the leges Antoniae, "Antonine laws") was a law established in ancient Rome in April 44 BC.  It was proposed by Mark Antony and passed by the Roman Senate, following the assassination of Julius Caesar.  It formally abolished the Dictatorship.  It was the second law to do so (the first being passed after the Second Punic War, replacing the Dictatorship with the final decree of the Senate); however, the earlier law had essentially been nullified by the subsequent Dictatorships of Sulla and Caesar.

Civic Crown: The Civic Crown (Latin: "corona civica" ) was a chaplet of common oak leaves woven to form a crown.  During the Roman Republic and the subsequent Principate, it was regarded as the second highest military decoration to which a citizen could aspire (the Grass Crown being held in higher regard).  It was reserved for Roman citizens who saved the lives of fellow citizens by slaying an enemy on a spot held by the enemy that same day.  The citizen saved must admit it; no one else could be a witness.

List of Roman dictators: A list of all of the Roman dictators and magistri equitum known from ancient sources.  In some cases the names or dates have been inferred by modern historians.

Alexandria riot (66): Extensive riots erupted in Alexandria, Roman Egypt, in 66 CE, in parallel with the outbreak of the First Jewish–Roman War in neighbouring Roman Judea.  With the rising tension between the Greeks and the Jews the Alexandrines had organized a public assembly to deliberate about an embassy to Nero, and a great number of Jews came flocking to the amphitheater.  When the Alexandrines saw the Jews they attacked them.  They killed the majority of the Jews and those who were captured were burned alive.  The Jews wanted retaliation for what the Greeks had done and threatened to do it with violence.  However, Tiberius Julius Alexander, the governor of the city, was able to restrain them.  Tiberius privately sent for the principal men of the Jews, and convinced them to be quiet, and not provoke the Roman army against them.  But the seditious did not take the threat seriously, and reproached him for so uttering threats.  The governor now understood that those who were most riotous would not be pacified unless some great calamity would overtake them.  He sent out the two Roman legions that were in the city (the Third Legion Cyrenaica and the Twenty-Second Deiotariana), together with 5,000 other soldiers, to punish the Jews.  They were permitted not only to kill them, but to plunder them of what they had, and to set fire to their houses.  The Romans showed no mercy to the infants, had no regard for the aged, and went on in the slaughter of persons of every age; over 50,000 Jews lay dead in the streets.  Tiberius Julius Alexander eventually took mercy on the Jews and called off the attacks.  This was one riot of many that broke out in not only Alexandria, but also in Damascus, Caesarea and in many other places.  During the events, the prefect Iulius Alexander attacked the Jewish quarter of the city.

Supporting paragraphs: Lex Antonia Sulla
Answer: the Social War