北宋时,辽邦设“双龙会”,邀宋太宗议和。杨家将护驾遇伏兵败。四郎被擒,与铁镜公主成婚。十五年后,辽邦摆天门阵,佘太君押粮御敌;四郎思母心切,公主为其盗令出关。杨家母子终得相聚。四郎返辽,萧后欲斩四郎,公主求免。后世传为佳话。。Francesco’s Mediterranean Voyage is a BBC Television documentary series first aired in 2008. It follows Venetian architect Francesco da Mosto as he follows the historical trading route from Venice through the Adriatic Sea, Corinth Canal, Aegean Sea and the Dardanelles to Istanbul. This route was taken by, among others, his ancestor Alvise da Mosto. Travelling as a member of the...。