This large Byzantine text grouping of manuscripts is easily identifiable and has the most cohesive identifiable textual profile within any Byzantine text type. The grouping was first recognized and described in the West by textual scholar, Hermann Von Soden in his, (1901-1903) vols., Die Schriften des Neuen Testaments.
Von Soden recognized this manuscript grouping with his designated Kr siglum standing for Koine revised. Von Soden also noticed that all Kr manuscripts had the same easily identifiable type of red rubricated lectionary marginalia markings in each manuscript and most often lacks the Eusebian canon normally found in most other manuscript groups. He further theorized that that grouping was an attempt to create a unified majority text in the Middle Ages. This large manuscript group can be easily recognized by its μ7 PA section.
The care in and transmission process of Kr or family 35 manuscript grouping is unparalleled within the NT manuscript tradition. For Von Soden, the Kr grouping originated during the 11th-12th century most likely at either Constantinople or Mt. Athos. By the 13-14th centuries this manuscript grouping constituted almost three quarters of the manuscripts produced in this era. Dr. Wilbur Pickering of Valparaiso, Brazil has now completed a consensus text of the Kr or family 35 text type through careful collation of many manuscripts from this textual grouping. The following lists below aid identifying the manuscripts contained in this Byzantine text grouping.