After three proposals, Sienna Miller has finally agreed to marry Rhys Ifans. The English actress reportedly said yes to the Welsh's actor's marriage proposal after his third attempt.

The 39-year-old "Notting Hill" actor, who has been dating "The Factory Girl" actress since last year, had proposed for her hand in August. Miller apparently turned him down. That was his first attempt.

The couple are already living together in the actress' West London home. They are said to be looking for a house in Oxford and Wales.

A source reveals, "Rhys has admitted he and Sienna are getting married."

"Everything is supposed to be hushhush, but Rhys is over the moon and finding it hard to keep quiet. He can't believe she finally said yes."

Ifan's close friend, Kate Moss, is reportedly invited to attend the summer wedding.

The insider adds, "Although Sienna and Rhys have a lot of famous friends, they will keep it low-key. They won't be signing up to some magazine deal."

Miller, 26, had been quoted to say in one of her interviews that Ifans is her soulmate. She had said, "I am in love - Rhys and I are the best of mates and life is going great."

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