如何使用譜系樹添加父級？

Question

我正在建立我家族的家譜樹（所有家族，甚至是遠親）。我想加上我的曾曾祖母，我曾祖母的分支。我曾祖父那裡的分支沒有問題。這是一個部分（分支祖母），舉例來說：

\documentclass[a4,10pt,landscape]{article}
\usepackage{incgraph}
\usepackage[all]{genealogytree}

\newcommand{\f}{female}
\newcommand{\m}{male}

\gtrset{database format=short,edges={anchoring=center},language=spanish, level 0/.style={level distance=5mm}, level -1/.style={level distance=10mm},level -2/.style={level distance=15mm,level size=20mm, node size = 20mm},timeflow=down}
\gtrset{comment code={(\gtrDBcomment)}}

\begin{document}
\begin{inctext}
\begin{genealogypicture}[processing=database,database format=full,template=signpost,node size=3cm,level size=3.2cm,list separators hang,place text={\newline}{},box={fit basedim=9pt,boxsep=2pt,segmentation style={solid},halign=left,before upper=\parskip1pt,\gtrDBsex}]
sandclock
{
    child{
        g[\m]{
            my great-great-grandfatherX
        }
        p[\f]{
            my great-great-grandmotherX
        }
        child{
            g[\m]{
                my great-grandfatherX
            }
            p[\f,processing=database]{
                name={my great-grandmotherY},
                comment={\textbf{Here!} How add her mother or father?},
            }
            child{
                g[\f]{my grandmotherX}
                p[\m]{my grandfatherZ}
                c[\f]{my aunt}
                c[\m]{my other uncle}
                child{
                    g[\f]{my other aunt}
                    p[\m]{husband of my aunt}
                    c[\f]{my cousin}
                }
                child{
                    g[\m]{my father}
                    p[\f]{my mother}
                    c[\f]{my sister}
                    c[\m]{my brother}
                    c[\m]{me}
                }
            }
        }
    }
}
\end{genealogypicture}
\end{inctext}

\end{document}

我嘗試在其中使用parent：

   p[\f,processing=database]{
            name={my great-grandmotherY},
            comment={\textbf{Here!} How add her mother or father?},
            parent{
                    g[\f]{my great-great-grandmotherY}
            },
    }

不起作用，但至少沒有顯示錯誤。它與高斯家譜樹的家譜樹手冊中的範例幾乎相似（第 39 至 42 頁），但我無法正常工作。

多謝！達裡奧