Question: What was the birth date of the leader of the group that Patricia Krenwinkel was most commonly known as Katie in?

<P0-S0>  During her time with Manson's group, she was known by various aliases such as Big Patty, Yellow, Marnie Reeves and Mary Ann Scott, but to The Family she was most commonly known as Katie. <P0-S1> Patricia Dianne Krenwinkel (born December 3, 1947) is an American murderer and a former member of Charles Manson's "Family". <SEP> <P1-S0> Charles Milles Manson (born Charles Milles Maddox, November 12, 1934) is an American convicted mass murderer and former cult leader who led what became known as the Manson Family, a quasi-commune that arose in California in the late 1960s. <P1-S1>  Manson's followers committed a series of nine murders at four locations in July and August 1969. <P1-S2>  In 1971 he was found guilty of first-degree murder and conspiracy to commit murder for the deaths of seven people – most notably of the actress Sharon Tate – all of which were carried out by members of the group at his instruction. <P1-S3>  Manson also received first-degree murder convictions for two other deaths. <P1-S4>  Manson was originally sentenced to death, but his sentence was commuted to life imprisonment when California invalidated the state's death penalty statute in 1972. <P1-S5>  He is currently serving multiple life sentences at California State Prison in Corcoran. <SEP> <P2-S0> Sándor Csoma de Kőrös (] ; 27 March 1784/811 April 1842), born Csoma Sándor (Csoma being the family name) was a Hungarian philologist and Orientalist, author of the first Tibetan-English dictionary and grammar book. <P2-S1>  He was called Phyi-glin-gi-grwa-pa in Tibetan, meaning ""the foreign pupil"" and was given the title of Bosatsu or Boddhisatva (Buddhist sainthood) by the Japanese in 1933. <P2-S2>  He was born in Kőrös, Grand Principality of Transylvania (today Chiuruş, Romania). <P2-S3>  His birth date is often given as 4 April, although this is actually his baptism day and the year of his birth is debated by some authors who put it at 1787 or 1788 rather than 1784. <P2-S4>  The Magyar ethnic group, the Székelys, to which he belonged believed that they were derived from a branch of Attila's Huns who had settled in Transylvania in the fifth century. <P2-S5>  Hoping to study the claim and to find the place of origin of the Székelys and the Magyars by studying language kinship, he set off to Asia in 1820 and spent his lifetime studying the Tibetan language and Buddhist philosophy. <P2-S6>  Csoma de Kőrös is considered as the founder of Tibetology. <P2-S7>  He was said to have been able to read in seventeen languages. <P2-S8>  He died in Darjeeling while attempting to make a trip to Lhasa in 1842 and a memorial was erected in his honour by the Asiatic Society of Bengal. <SEP> <P3-S0> Purdie is believed to have been born in Scotland by 1743; however, his exact birth date and exact place of birth are unknown. <P3-S1>  He was trained at an early age in the skills of printing in his motherland. <P3-S2>  His immigration to the American British colonies is not known for sure; however, by 1764 he took up residence in colonial Williamsburg, Virginia. <P3-S3>  At that time he was employed by the then current Williamsburg printer Joseph Royle, as an apprentice.