Factbox: Girls, trash and bribes: Berlusconi's fall from grace

(Reuters) - Prime Minister Silvio Berlusconi faces a vote of no confidence in parliament on Tuesday, weakened by a string of sex and corruption scandals that have undermined his credibility with voters.

Following is a list of the main embarrassments that have hit Berlusconi since he won power in 2008.

SEX SCANDALS

* In April 2009, Berlusconi was photographed at the 18th-birthday party of aspiring model Noemi Letizia. Soon after, his wife Veronica announced that she wanted a divorce, saying she could "no longer stay with a man who frequents minors."

* Berlusconi has denied anything improper in his dealings with Letizia, who was soon eclipsed by claims from other women that they had been invited by an intermediary to attend parties at Berlusconi's residences in Rome and in Sardinia.

* Call girl Patrizia D'Addario said she had slept with Berlusconi after one party and had tapes to prove it. Berlusconi denied paying for sex but said he was no saint.

* After a period of relative calm, another scandal emerged last October about Berlusconi's dalliances with women.

A 17-year old Moroccan nightclub dancer known by the stage name of Ruby Rubacuori (Heartstealer) said she had attended parties at Berlusconi's villa in Milan which she said included some sort of sexual activity -- known as "bunga bunga."

It was later revealed that Berlusconi had called a police station in Milan where Ruby was held for theft to ask for her release, saying she was the niece of Egyptian President Hosni Mubarak. Berlusconi says he did not interfere with the justice system and only helped a needy girl.

LEGAL WOES AND CORRUPTION PROBES

* Berlusconi is a defendant in two corruption and tax fraud trials. In one, he is accused of bribing British lawyer David Mills to give false testimony in 1997 to protect the media tycoon's business interests. In the other he is accused of tax fraud and false accounting in the acquisition of television rights by his Mediaset broadcasting empire.

The trials have been effectively suspended because of a law that allows Berlusconi not to attend his court cases while in office, but other legal headaches have engulfed his cabinet.

* Industry Minister Claudio Scajola was forced to resign in May after it emerged that his Rome apartment overlooking the Colosseum had been partly paid for by an entrepreneur arrested in a corruption probe over lucrative public works contracts.

* The head of the civil protection department, Guido Bertolaso, and one of three national coordinators for Berlusconi's People of Freedom party were also placed under investigation in the same probe. All denied wrongdoing.

* Another minister, Aldo Brancher, resigned in July, just 16 days after being appointed, over accusations of embezzlement.

* The same month, economy undersecretary Nicola Cosentino -- wanted by prosecutors because of alleged association with the mafia -- quit in the so-called "P3" influence-peddling scandal.

The probe, which also involved some of Berlusconi's closest associates, centered on allegations of a secret group of people which aims to manipulate political and judicial appointments. All those investigated have denied any wrongdoing.

NAPLES GARBAGE

* Berlusconi has often cited the clearing of the rubbish-strewn streets of Naples shortly after he came to power in 2008 as one of his government's main achievements.

But in October this year, the southern city's chronic garbage problem came back to haunt him after renewed problems left thousands of tones of garbage rotting on the streets.

Residents have protested bitterly, accusing Berlusconi of ignoring their plight and blasting the government's failure to solve the crisis despite repeated promises of swift resolution.

(Reporting by Silvia Aloisi; Editing by Elizabeth Fullerton)