Virginia Raggi of the Five Star Movement, or M5S, became Rome's mayor after winning a runoff against a center-left candidate, capturing 67.2% of the vote Monday, the country's official ANSA news agency reported.
Raggi, who will turn 38 next month, is the youngest mayor in Rome's history, ANSA reported.
The news agency said associates describe the civil lawyer as "precise, determined, and a stickler for detail."
2. She says equality is 'still a pipe dream'
Raggi acknowledged the gender significance of her victory in a post on a party blog. "The first thing I would say ... is that finally Rome will have a female mayor," she wrote.
At a time "in which equal opportunities are still a pipe dream," she hailed the result as "the first sign of the profound change that we are bringing to this country."
3. Her party won big
Raggi's victory was part of a wider sweep by the M5S, which saw the party win the mayoralty in 19 out of the 20 towns and cities where it put up candidates, ANSA reported.
Following the wins, Grillo said M5S, which has traditionally been seen as a protest party, was ready for central government.
"This is just the beginning," he said, the agency reported. "It's our turn now."
Raggi was introduced to the party in 2011 by her husband and fellow member, radio director Andrea Severini, with whom she has a 7-year-old son, Matteo, ANSA reported.
4. She has vowed to tackle Rome's enduring problems
Raggi campaigned on a platform of addressing the Italian capital's enduring issues, from infrastructure to corruption.
Besides vowing to clean up City Hall, she promised to take on issues from housing to recycling and waste management to public transport -- calling for the creation of more cycling lanes to tackle the city's notorious traffic problems.
5. She doesn't have a ton of experience
Critics have pointed to her relative lack of experience as a potential shortcoming. Raggi's political experience is limited to a few years on Rome's City Council.