Bonn's beginning dates to between 13 - 9 BC when Romans began building roads, bridges, and fortresses at a location known as "Bonna". One well documented event was the maryrdom of two Thebaean legionaries. The Thebaean Legion was an all Christian legion, which refused to worship the emperor as a god. As punishment the Thebaean Legion's commander, Mauritius was executed in St. Moritz as were many other Thebaean legionaries including '''Cassius''' and '''Florentius''', Bonn's patron saints, who were martyred at the location of the present-day ''Münster'' basilica.After the Romans left the town had a very tumultuous history. Bonn has been destroyed and pummeled on so many occasions that it nearly became a pastime. Norman invaders were the first to burn the town to the ground in 881 and again in 892. In 1198 King Philip of Swabia and Duke Heinrich von Brabant layed siege to Bonn. In 1244 Konrad von Hochstaden, archbishop of Cologne ordered Bonn to be fortified. The reasons for fortrification may have been for the Archbishop's protection as he had apparently begun fighting with Cologne's leaders and often resided in Bonn after the dispute. In 1288 under Sigfried II von Westerburg the archbishopric was transferred from Cologne to Bonn, which has since been transfered back to Cologne.In 1582 Archbishop Gebhard Truchsess von Waldburg converted to Calvinism and refused to give up his position as elector. In February of 1583 Waldburg married and was in April of the same year excommunicated by Pope Gregory XIII. After the Truschessian War Gebhard fled to Strassbourg, but not before Bonn felt the rapture of Bavarian troops, who blew up the Godesberg (the archbishop's residence) with 1,500 pounds of gun powder. While the town survived the Thirty Years war Bonn was completely destroyed in 1689 as a result of the War of the Grand Alliance.In December 1770 Bonn's most famous son, Ludwig van Beethoven, was born on Bonngasse. Bonn is probably best known as Beethoven's birth place and this fact is well advertised by the city despite Beethoven's vehement disgust towards his hometown. Beethoven spent some time in Vienna hoping to study with Mozart, but after his mother's death he was forced to return to Bonn for five years to raise his two younger brothers since his alcoholic father was unable to. In 1792 Beethoven returned to Vienna never to have returned to Bonn. http://wikitravel.org/en/Bonn