Jan Matuszyński

Matuszyński came from a musical family; he himself played the flute, and his brother Leopold (1820–93) became an opera tenor and director.

During the November 1830–31 Uprising he served as a medic with the Polish forces, in the 5th Mounted Rifles, and won the order of Virtuti Militari.

[1] Emigrating to Paris in 1834, he for more than two years[2][3] shared Chopin's apartment in the Chaussée d'Antin and gave him medical advice.

[1] In 1837 he published a treatise, De l'influence du nerf sympathique sur les fonctions des sens (On the Influence of the Sympathetic Nervous System on the Functions of the Senses).

Sand wrote that he "died in our arms after a slow and cruel agony, which caused Chopin as much suffering as if it had been his own.