Historical sunspot records provide piece by piece more information on the solar variability on a centen- nial scale. In this work, we analyze sunspot observations from archives of Georg Christoph Eimmart, which is the second-richest data set of the Maunder minimum after archives of the Paris observatory. Cumula- tively, we process 109 drawings of the solar disk reported by seven observers. Sunspots were assigned into groups; areas and sunspot positions were evaluated. Reconstructed parameters are compared to those by [1, 2, 3], the group numbers version 1.21 by [4], and contemporary astronomers of the Maunder minimum. Particular attention is paid to the estimation of uncertainties in historical reports. The hypothesis of long- lived (up to four solar rotations) sunspot groups during the Maunder Minimum is considered. Comparison of the observations by La Hire and Muller of 1719 – 1720 suggests that the observations by La Hire were for astrometric purposes rather than aimed to sunspot counting.