First found in Swabia, where it is believed to have first emerged, initially borne by dairy farmers and cheesemongers. The earliest documented instance of the name has been traced to this region, where Arnold Chesere was recorded to have lived in 1246. The young Kaase family was instrumental during this early period, playing a major role in the development of medieval Swabian society.

Some of the first settlers of this family name or some of its variants were: Barbara Kaser, who was contracted out as a servant in Philadelphia in 1817; Louis Kaser, who applied for naturalization in Missouri in 1840; Jacob Keese, who arrived in San Francisco in 1852.

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