The short answer, biblically speaking is that King David's mother held the office of Queen of his kingdom (not his wife). In the Old Testament, the Messiah of the Jews was foretold to come out of the line of David. Jesus then as well, would have his mother Mary hold the office of Queen of His kingdom.
If you'll allow me, I have a story about Ephesus.
Years and years back, I accidently stumbled (in my stumbling back to the Church) onto Ephesus. We have such a very good and gracious God. :p
I was on a month long Active Reserve trip with the US Navy (after the war to liberate Kuwait). Our group trained at Bari Italy and then we flew over to Izmir Turkey.
On the counter at the hotel where we stayed, was a brochure describing an ancient Greek and Roman city called Ephesus. No lightbulbs went off. I like archeology and a bit of history, and I had a day off. Sadly, when I look back on that, I wasn't the only person who didn't have a clue about Ephesus. There were 50 some other military members on that trip, no one brought up Ephesus.
Our bus tour arrived at Ephesus and we walked through the museum - past the Greek and Roman gods and goddess statues and then we go on a walking tour outside.
Our young Muslim tourguide, then walks us by a small house and in broken English he says, "And this is where it is believed that Mary lived."
In my mind, I'm saying to myself, "Mary?" "Mary who?"
Now, I'm a bit embarassed and confussed but I'm keeping my mouth shut.
By the time the tour was over, I had walked past the grave which was once considered St. John's and our group walked down into the colesium which is talked about in Acts 19:23-41: St. Paul and The Riot in Ephesus.
A bit of religious history about Ephesus:
"When St Paul visited Ephesus to preach Christianity in the first century AD, he was confronted by the Artemis' cult who had no plans to abandon their goddess. And when the temple was again destroyed by the Goths in AD 262, the Ephesians vowed to rebuild. By the fourth century AD, most Ephesians had converted to Christianity and the temple lost its religious glamor. The final chapter came when in AD 401 the Temple of Artemis was torn down by St John Chrysostom.
Ephesus was later deserted, and only in the late nineteenth century has the site been excavated. "
From that website:
"Paul's Ministry at Ephesus is recorded in Acts 18:18-21; 19:1-41; 20:17-38. Aquila and Priscilla were probably the founders of the Christian church when they came to Ephesus with Paul (Acts 18:18-19). Paul had just finished eighteen months in Corinth, at the end of his second missionary journey.
He sailed to Ephesus in company with Priscilla and Aquila. Paul went to the Jewish synagogue in Ephesus and preached (Acts 18:18-26). He then left and returned to give a report to his sending church.
Paul returned to Ephesus on his third missionary journey (Acts 19:3-6). He found some followers of John the Baptist there (Acts 19:8-12).
Paul had considerable results in Ephesus."