church of St. Martin and the Johanniter Chapel at Johannitergasse 70. Three fortifications are on the list; the Heimenholz and the Pferrichgraben which were both part of the old Roman era Rhine fortications and the entire medieval city wall. The last two buildings on the list are the Feldschlösschen brewery at Feldschlösschenstrasse 34 and the former Gasthof (combination hotel and restaurant) zum goldenen Adler at Obertorplatz 4. Economy , Rheinfelden had an unemployment rate of 3.83%. , there were 40 people employed in the primary economic sector and about 9 businesses involved in this sector. 1,313 people are employed in the secondary sector and there are 86 businesses in this sector. 4,420 people are employed in the tertiary sector, with 432 businesses in this sector. there were 5,437 workers who lived in the municipality. Of these, 3,453 or about 63.5% of the residents worked outside Rheinfelden while 2,807 people commuted into the municipality for work. There were a total of 4,791 jobs (of at least 6 hours per week) in the municipality. Of the working population, 26.3% used public transportation to get to work, and 39.2% used a private car. Religion From the , 3,858 or 36.1% were Roman Catholic, while 3,520 or 33.0% belonged to the Swiss Reformed Church. Of the rest of the population, there were 285 individuals (or about 2.67% of the population) who belonged to the Christian Catholic faith. Transport Rheinfelden sits on the Bözberg railway line and served by local and regional trains at Rheinfelden and Rheinfelden Augarten. Education In Rheinfelden about 73.6% of the population (between age 25–64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule). Of the school age population (), there are 667 students attending primary school, there are 251 students attending secondary school, there are 386 students attending tertiary or university level schooling, and there are 18 students who are seeking a job after school in the municipality. Rheinfelden is home to the Stadtbibliothek Rheinfelden'' library. The library has () 16,442 books or other media, and loaned out 58,291 items in the same year. It was open a total of 250 days with average of 30 hours per week during that year. Notable people Hedwig of Habsburg (ca.1260 Rheinfelden, Swabia – 1303) Margravine of Brandenburg 1279-1285/1286 Rudolf II, Duke of Austria (ca. 1270 in Rheinfelden, Duchy of Swabia – 1290) Duke of Austria