Child abuse detectives charged the 61-year-old with being an accessory before the fact of having sexual intercourse with a child and procuring a child under 14 years for unlawful sexual activity.
It follows a Pakistan-born Muslim cleric being charged yesterday with conducting the illegal marriage and the arrest last week of the "husband" - a Lebanese national - on 25 child sex offences.
The father, reportedly an Australian who converted to Islam, was refused bail and the 26-year-old Lebanese also remains in custody.
An investigation by the Sydney Daily Telegraph published today said there was an "epidemic" of child brides with hundreds of under-age teenagers living in unregistered "marriages" in New South Wales state alone.
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The state's Community Services Minister Pru Goward last week said anecdotal evidence suggested forced marriages between children and adults was an ongoing issue, particularly in Sydney.
"This is a very secretive practice ... But it is not an unknown practice," she said after the current case first surfaced.
Goward has written to her federal counterpart Michaelia Cash to ask for national awareness campaigns on under-age and forced marriage.