Ku sii qor faqradan - Grocholewski waxaa loo magacaabay Cardinal-Deacon of San Nicola in Carcere by John Paul II ee Consistory ee 21 Janaayo 2001. Grocholewski wuxuu si otomaatig ah u lumiyay booskiisii curial 2dii Abriil 2005 markii uu dhintay Pope John Paul. Waxaa xafiiska lagu xaqiijiyay Pope Benedict XVI 21kii Abriil. Wuxuu ka mid ahaa kardinalkii doortay ee ka qaybgalay shirkii 2005 ee lagu doortay Pope Benedict XVI. 21-kii Febraayo 2011, wuxuu doortay amarka Wadaadka Cardinal, iyadoo kaniisaddiisii hore ee diaconal loo qaaday heerka cinwaanka cardinalitial. Wuxuu ka qeybgalay shirweynihii papal ee 2013
ee doortay Pope Francis.