Marilyn Manson has proposed to his girlfriend of five weeks.

The 43-year-old rocker presented actress and filmmaker Seraphim Ward, 27, with a family ring, thought to have belonged to his grandmother, last Thursday (12.04.12), according to friends.

A source told Life & Style magazine: ''Marilyn proposed with a family ring. I think it was his grandmother's. It's Celtic, and Seraphim says it has a magical bonding to the receiver.''

Seraphim's representative added: ''Seraphim is in a committed relationship and is over the moon about what her bright future holds with her partner.''

Yesterday (15.04.12), the actress tweeted a picture of a diamond encrusted Claddagh ring - a traditional Irish ring given as a token of Friendship, love, or marriage - with the caption ''OMG! (sic)''.

She later added: ''I am still speechless and in shock!''

On her twitter page Seraphina describes herself as ''a Independent Occult Filmmaker and a Industrial Goth Rock Artist (sic)'' and pals say she and Marilyn bonded over their shared interest in the supernatural.

The friend added: ''They share an interest in the occult and have bonded fast. He's gotten her a house in the Hollywood Hills.''

Marilyn was previously married to Dita Von Teese and engaged to both Rose McGowan and Evan Rachel Wood.