A 700-year-old sword was recently reeled in by a fisherman in Poland offering a rare glimpse into warfare in the Middle Ages.The discovery was announced by the Capital Conservator of Monuments in Warsaw last month.In a Facebook post, the department said the lucky angler found the sword in the Vistula River.WORKERS DISCOVER 18TH-CENTURY VESSEL WHILE INSTALLING PIPELINE IN MEDIEVAL 'GAME OF THRONES' CITY"It was supposed to be this big a fish but it turned out to be this big a sword!" the post read."As you can see, the Vistula hides some real treasures."The fisherman surrendered the sword to local authorities, who transferred it to local experts.A team is now working to preserve the artifact for future study.The Facebook page's post noted that the sword is preserved "almost in its full length" and features both a spherical pommel and a cross mark on its grip.1,000-YEAR-OLD MEDIEVAL SWORD EMERGES FROM DUTCH RIVER AFTER CHANCE DISCOVERY: 'BARELY CORRODED'Anna Magdalena a, a chief specialist with the city of Warsaw, told Fox News Digital that experts are still studying the sword."The sword is dated to the 13th or 14th century, which is the time when Warsaw was founded," a noted in an email translated from Polish to English."A more precise date may be determined thanks to the cross mark, which is the signature of the blacksmith who made it," she added. "Research is ongoing."She said the length of the sword, including the hilt, is over 31 inches.CLICK HERE TO SIGN UP FOR OUR LIFESTYLE NEWSLETTER"I dont know the weight, but the sword is quite light because [of a] very large extent of corrosion," a said."A sword this old, found in what is now Warsaw, is unique."The circumstances of why the sword was dropped in the river are now lost to time.For more Lifestyle articles, visit foxnews.com/lifestylea noted that swords were not deposited ritually in 13th-century Poland; they were more of a pagan tradition than a Christian one.She concluded, "The sword was found in a river, meaning it was discovered without context that is, without other artifacts that could tell us more about it."The weapon is one of many fascinating archaeological discoveries made in Poland this year.In Gdask, Poland, archaeologists recently found a medieval knight's tomb beneath a former ice cream parlor.Months earlier, a pair of pedestrians found a 2,500-year-old dagger on a Polish beach, on the coast of the Baltic Sea.