Report dated 1.7.1842 from C.F. Holbech to Christine Stampe (Holbech dates the visit Sunday 27.6.1842, but in 1842 27.6. was a Monday. Holbech has dated several entries in his report one day late, so he most most probably means Sunday 26.6.1842).
Rigmor Stampe (ed.): Baronesse Stampes Erindringer om Thorvaldsen, Copenhagen 1912, p. 198.