And ninth seed Daniela Hantuchova saw off France's Alize Cornet 6-2 7-5 to continue her progress.
Martinez will next take on Patty Schnyder, who beat Daniela Hantuchova 6-7 6-3 7-6 on Friday.
But Daniela walked out after three weeks, complaining that Margarida was watching her every move.
The lifelong Catholic has been married to Daniela Ferrari since 1980 and has two daughters.
Thirteenth seed Daniela Hantuchova went through after three tough sets against Luxembourg's Anne Kremer.
Home favourite Kristina Groves kept out German Daniela Anschutz-Thoms to take bronze at the Richmond Olympic oval.
Other seeded players to progress were China's Na Li (16), Daniela Hantuchova (22) and Shahar Peer (29).
Fifth-seeded Italian Sara Errani also lost in three sets to 2012 runner-up Daniela Hantuchova 4-6 6-1 7-5.
CNN: Injured Sharapova pulls out of season opening tournament
"Our clients don't see animals just as animals, " says Daniela Guimaraes, the owner of Animalle Mundo Pet.
Then Daniela, who had previously worked as her maid, called and asked if she was looking for someone.
Daniela Andrier, perfumer for Prada's Infusion d'Iris fragrances, has been working for years on perfecting the iris note.
Meanwhile, defending champion Serena Williams cruised into the quarterfinals with a crushing 6-2 6-0 win over Slovakian Daniela Hantuchova.
Actress Jessica Alba , tennis player Daniela Hantuchova and socialite Paris Hilton were Nos. 2, 4 and 5, respectively.
Daniela Gerson, a journalist (and the daughter of cookbook author Joan Nathan), started a club in Los Angeles in 2011.
Slovakia took an unbeatable 3-1 lead against last year's finalists Serbia as Daniela Hantuchova won 6-3 6-2 against Vesna Dolonc.
Also on Wednesday, Japan's Ai Sugiyama ousted fourth-seeded Daniela Hantuchova of Slovakia 6-3 6-1 to advance to the last eight.
Yesterday ForbesWoman ran a book excerpt of Smart Girls Marry Money by Elizabeth Ford and Daniela Drake, M.
Newspapers that had scorned him were full of pictures of him dancing the night away with his comely wife, Daniela.
Slovak number seven seed Daniela Hantuchova was defeated in a three-set marathon with Spaniard Arantxa Parra Santonja 6-4 6-7(7-3) 7-6 (7-5).
Daniela Hantuchova, another two-time champion, was knocked out by Italy's Roberta Vinci.
Associated Press writers Daniela Petroff and Karl Ritter contributed to this report.
He has directed three road movies: "The Motorcycle Diaries" (2004), "Central Station" (1998) and "Foreign Land" (1996), which he co-directed with Daniela Thomas.
Daniela Bolzmann, a marketing manager for WeDeliver, a Chicago business-delivery startup, has churned through 40 different apps since graduating from college in 2010.
Fourth seed Stosur reached the final of the Family Circle Cup with a 6-3 7-6 (7-2) victory against No. 8 Daniela Hantuchova of Slovakia.
His third golfing daughter, Daniela, who goes by the nickname "Crash, " is 16 and will be playing at the University of Alabama next year.
Daniela Hantuchova brought Slovakia level at the end of day one of the Fed Cup final with a comprehensive win over Spain's Magui Serna.
Ekaterina Makarova and Elena Vesnina won the deciding doubles rubber, beating Dominika Cibulkova and Daniela Hantuchova 4-6 6-3 6-1 in two and a half hours.
World record holder Spofforth turned second behind Daniela Samulski but took the lead with a superb turn as the German faded at the 60m mark.
Williams, who had required three sets to defeat Daniela Hantuchova in the previous round, was delighted to have had an easier ride this time around.
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