Maria Skłodowska-Curie died on July 4, 1934 in a clinic in the French Alps. The cause of death: leukaemia, most likely a result of her many years of dangerous work with radioactive substances. Originally Skłodowska-Curie was buried alongside her husband Pierre in his hometown of Sceaux, but in 1995 both were ceremoniously moved to the Panthéon in Paris – which means Skłodowska-Curie is the only woman buried there on her own merits, and the only non-native French person to rest there as well. The rest of Skłodowska Curie’s family can be found at Powązki Cemetery, including sisters Zofia, Bronisława and Helena and both her parents. A plaque on the side of the tomb - which can be most easily accessed via the St. Honorata gate near St. Karol Boromeusz Church and is in section 164, row III – notes Skłodowska-Curie’s dates of birth and death and her current resting place in France.