In 1758, his brother Pierre Joseph died at the age of six, and Pierre Charles became the eldest son.
1	In	in	ADP	IN	_	2	case	2:case	Discourse=joint-sequence_m:20->14:2
2	1758	1758	NUM	CD	NumForm=Digit|NumType=Card	8	obl	8:obl:in	Entity=(29-time-new-cf4-1-sgl)|SpaceAfter=No|XML=<date when:::"1758"></date>
3	,	,	PUNCT	,	_	2	punct	2:punct	_
4	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	5	nmod:poss	5:nmod:poss	Entity=(30-person-new-cf2-2-coref(1-person-giv:act-cf1*-1-ana-Pierre_Charles_L'Enfant)
5	brother	brother	NOUN	NN	Number=Sing	8	nsubj	8:nsubj	Entity=30)
6	Pierre	Pierre	PROPN	NNP	Number=Sing	5	appos	5:appos	Entity=(30-person-giv:act-cf2-1,2-appos
7	Joseph	Joseph	PROPN	NNP	Number=Sing	6	flat	6:flat	Entity=30)
8	died	die	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
9	at	at	ADP	IN	_	11	case	11:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	Entity=(31-abstract-new-cf3-2-sgl
11	age	age	NOUN	NN	Number=Sing	8	obl	8:obl:at	_
12	of	of	ADP	IN	_	13	case	13:case	_
13	six	six	NUM	CD	NumForm=Word|NumType=Card	11	nmod	11:nmod:of	Entity=31)|SpaceAfter=No
14	,	,	PUNCT	,	_	18	punct	18:punct	_
15	and	and	CCONJ	CC	_	18	cc	18:cc	Discourse=causal-result:21->20:0
16	Pierre	Pierre	PROPN	NNP	Number=Sing	18	nsubj	18:nsubj|21:nsubj:xsubj	Entity=(1-person-giv:act-cf1*-1,2-coref-Pierre_Charles_L'Enfant
17	Charles	Charles	PROPN	NNP	Number=Sing	16	flat	16:flat	Entity=1)
18	became	become	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	8	conj	8:conj:and	_
19	the	the	DET	DT	Definite=Def|PronType=Art	21	det	21:det	Entity=(1-person-giv:act-cf1*-3-coref-Pierre_Charles_L'Enfant
20	eldest	old	ADJ	JJS	Degree=Sup	21	amod	21:amod	_
21	son	son	NOUN	NN	Number=Sing	18	xcomp	18:xcomp	Entity=1)|SpaceAfter=No
22	.	.	PUNCT	.	_	8	punct	8:punct	_
