Incest of unequal gravity: the "incestus iuris gentium," which was applied to both Romans and non-Romans in the Empire, and the "incestus iuris civilis," which concerned only Roman citizens. Therefore, for example, an Egyptian could marry an aunt, but a Roman could not. Despite the act of incest being unacceptable within the Roman Empire, Roman Emperor Caligula is rumored to have had sexual relationships with all three of his sisters (Julia Livilla, Drusilla, and Agrippina the Younger). Emperor Claudius, after executing his previous wife, married his brother's daughter Agrippina the Younger, and changed the law to allow an otherwise illegal union.
Henry VII, Holy Roman Emperor cast (1890) of the tomb in the Cast Courts of the Victoria and Albert Museum. Henry was married in Tervuren 9 July 1292 to Margaret of Brabant, daughter of John I, Duke of Brabant, and had the following children: Henry VII, Holy Roman Emperor Henry VII (German: "Heinrich"; c. 1275 – 24 August 1313) was the King of Germany (or "Rex Romanorum") from 1308 and Holy Roman Emperor from 1312. He was the first emperor of the House of Luxembourg. During his brief career he reinvigorated the imperial cause in Italy, which was racked with the partisan struggles between the