Question: Over what time period did the dynasty of which Eric Christoffersen of Denmark was a member provide the Kings of Denmark?
Context: The list of Florida hurricanes from 1950 to 1974 encompasses 85 Atlantic tropical or subtropical cyclones that affected the U.S. state of Florida.  Collectively, tropical cyclones in Florida during the time period resulted in about $7.04 billion (2017 USD) in damage, primarily from Hurricanes Donna and Dora.  Additionally, tropical cyclones in Florida were directly responsible for 93 fatalities during the period, as well as responsible for 23 indirect deaths.  Several tropical cyclones produced over 20 inches (500 mm) of rainfall in the state, including Hurricane Easy which is the highest total during the time period.  The 1969 season was the year with the most tropical cyclones affecting the state, with a total of 8 systems.  The 1954 and 1967 seasons were the only years during the time period in which a storm did not affect the state. An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator.  In its basic implementation, the dual-slope converter, the unknown input voltage is applied to the input of the integrator and allowed to ramp for a fixed time period (the run-up period).  Then a known reference voltage of opposite polarity is applied to the integrator and is allowed to ramp until the integrator output returns to zero (the run-down period).  The input voltage is computed as a function of the reference voltage, the constant run-up time period, and the measured run-down time period.  The run-down time measurement is usually made in units of the converter's clock, so longer integration times allow for higher resolutions.  Likewise, the speed of the converter can be improved by sacrificing resolution. The Kingdom of Croatia (Latin: "Regnum Croatiae" ; Croatian: "Hrvatsko kraljevstvo or Kraljevina Hrvatska" ) entered a personal union with the Kingdom of Hungary in 1102, after a period of rule of kings from the Trpimirović and Svetoslavić dynasties and a succession crisis following the death of king Demetrius Zvonimir.  With the coronation of King Coloman of Hungary as "King of Croatia and Dalmatia" in 1102 in Biograd, the realm passed to the Árpád dynasty until 1301, when the (male) line of the dynasty died out.  Then, kings from the Capetian House of Anjou, who were also cognatic descendants of the Árpád kings, ruled the kingdoms.  Later centuries were characterized by conflicts with the Mongols, who sacked Zagreb in 1242, competition with Venice for control over Dalmatian coastal cities, and internal warfare among Croatian nobility.  Various powerful nobles emerged in the time period, like Paul I Šubić of Bribir and Hrvoje Vukčić Hrvatinić, that secured de facto independence for their realms.  The Ottoman incursion into Europe in the 16th century significantly reduced Croatian territories and left the country weak and divided.  After the death of Louis II in 1526 during the Battle of Mohács and a brief period of dynastic dispute, both crowns passed to the Austrian House of Habsburg, and the realms became part of the Habsburg Monarchy. The Maya social classes is a system of political organization.  It is divided in "ahau" (king), nobles, priests, merchants and artisans, and peasants and slaves.  At the head of each Maya polity, there was "halach uinic", also called the "ajau".  It is commonly accepted that the appearance of kings in Maya lowland civilizations occurred during the time period change from the Pre Classics to the modern times.  This time period would make the first kings to be dated ca. 100.  These kings were recorded on carved stelae.  However, it was discovered in the Maya civilization of Nakbe that the first appearance of kings on stelae Albert IV of Saxe-Lauenburg (1315 – 1343) was the eldest son of John II of Saxe-Lauenburg and Elisabeth of Holstein-Rendsburg (*ca. 1300–before 1340*), sister of Gerard III "the Great".  In 1321 Albert IV succeeded his father as Duke of Saxe-Bergedorf-Mölln, a branch duchy of Saxe-Lauenburg, while his mother served as regent, before she remarried Eric Christoffersen (*1307–1331*), a son of King Christopher II and co-ruler in Denmark. Eric Christoffersen (c. 1307 – c. 1332) (Danish: "Erik Christoffersen" ) was king of Denmark from 1321 until his death, jointly with his father, King Christopher II.  He was a member of the House of Estridsen.  In Danish, he is called "Erik, udvalgt Konge." Human population change is the difference between the size of the population from the beginning to the end of a certain time period.  In other words, population change refers to change in the number of people during a specific time period.  As a whole,the world population has not been stable; it has increased manifold.  Due to this constant changing population, the subject of demographics, the statistics of how many people there are in a given population, was created.  Demography can also be defined as the study of populations, and the factors that cause the most amount of population growth or decline.  The main measurements of demography include: birth rates, death rates, sex ratios, life expectancy, and migration rates.  All of these measures are found by a series of surveys and censuses conducted over a time period in order to compare how the population is changing.  Other ways to measure population demographics include the use of historical maps, aerial photographs, and census statistics.  One of the reasons why demographers use statistics about population change is because of the social and demographic transformations that the world experiences; significant challenges for the government and businesses will take effect depending on the degree of the population change. Last Night of the Yankee Dynasty is a book written by ESPN sportswriter Buster Olney that chronicles the rise and fall of the New York Yankees' 1996-2001 dynasty against the backdrop of the franchise's loss to the Arizona Diamondbacks in Game 7 of the 2001 World Series.  It also has multi-page accounts of several key members of the Yankees organization during this time period and during the time period of the Yankees' dynasty. The House of Estridsen, sometimes called the Estridsen or Estrith Dynasty, was the dynasty that provided the Kings of Denmark from 1047 to 1412.  The dynasty is named after its ancestor Estrid Svendsdatter.  The dynasty is sometimes called the "Ulfinger", after Estrid's husband, Ulf the Earl. The list of Florida hurricanes from 1900 to 1949 encompasses 108 Atlantic tropical cyclones that affected the U.S. state of Florida.  Collectively, tropical cyclones in Florida during the time period resulted in about $4 billion (2008 USD) in damage.  Additionally, tropical cyclones in Florida were directly responsible for about 3,550 fatalities during the time period, most of which from the 1928 Okeechobee Hurricane.  The 1947 season was the year with the most tropical cyclones affecting the state, with a total of 6 systems.  The 1905, 1908, 1913, 1927, 1931, 1942, and 1943 seasons were the only years during the time period in which a storm did not affect the Floridian coasts.
Answer: from 1047 to 1412